Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
DAP 101B-4104-1EP CHAPTER 29   EMERGENCY EQUIPMENT   -
PRELIMINARY MATERIAL
NATO RESTRICTED
DAP 101B-4104-1EP
Issue 33
MARCH 2011
(Superseding AP/FAP 101B-4104-1EP January 1998)
TORNADO GR MK.4 AND 4A
AIRCRAFT
MODIFICATIONS 02455, 02500 AND 20327
INCORPORATED WITHIN THIS PUBLICATION ARE
NOT QUALIFIED BY BAE SYSTEMS
MARCH 2011
NATO RESTRICTED
Page 1 of 12
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
29-10 EJECTION SEATS
MAINTENANCE PROCEDURE 29-10/3 (43 work blocks) 03/11
EJECTION SEAT AND CARTRIDGES INSTALLATION [*** MANDATORY ***]
MANDATORY MAINTENANCE PROCEDURE
ASSOCIATED CARDS
POWER
DAP 101B-4100-6A
DAP 101B-4104-1EL
DAP 101B-4104-1EP
DAP 101B-4104-1HA
DAP 101B-4104-1LA2
MP 07-40/1
MP 15-13/2
YES
MP 24-40/1
MP 25-11/1
MP 29-10/6
MP 29-30/2
MP 80-10/18
MP 80-10/18A
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the work
detailed on this card
Note . . .
This procedure is
not applicable if the canopy is in situ and is to remain in situ, during installation of the
ejection seat. For installation of the ejection seat with the canopy in situ, refer to MP 29-10/8.
Equipment
Item
Reference
Application
Ejection seat servicing
MBSS 1
Holding the seat
stand (MAGERD 7501)
1730-99-4527666 or
1730-99-7922567 or
1730-99-7922568 or
4920-99-7304955 or
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 1 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Item
Reference
Application
4920-99-7669635 or
4920-99-7757632
Ejection seat servicing
27L/6176141
Attaching seat to stand
stand adaptor (MAGERD
7503)
Sling (MAGERD 2628)
P-890624-403
Lifting the seat
3940-99-6551831
Container
MBEU 63162
Storing cartridges
(MAGERD 7555)
8140-99-6640158
Container
-
Storing rocket pack
First line tool kit (MAGERD
MBEU 56400-403 4920- Refitting the seat
2549)
99-6596649
Vacuum cleaner
As available
Cleaning the cockpit
Torque wrench (2,5 N.m to
As available
Torque tightening rocket
11 N.m)
pack bolts
Torque wrench (12 N.m to
As available
Torque tightening firing units
68 N.m)
Feeler gauge
As available
Clearance check between
ejection gun mounting
brackets and ejection gun
mounting bolt locking
devices
Mobile servicing platform:
As available
Access to aircraft
- height 2 m
External electrical power
4FE/9722 or
Electrical power supplies to
supply source 200 V, 400
4FE/2141397
aircraft
Hz, 3-phase a.c. (MAGERD
5301)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 2 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Item
Reference
Application
ADU safety pin
MBEU 77362
Make the ADU safe on
5340-99-2527727
installation
ADU mode selector tool
MBEU 58633-403
ADU mode selection
(MAGERD 5543)
4920-99-2558783
- MAN or AUTO
Test set IFF/SSR, Type IFF-
10S/3925249
Testing the IFF
701 (MAGERD TBN)
Type C-to-TNC adaptor
-
Adapting test IFF/SSR to
the antenna switching unit
Splitter box
P-891350-403
Routeing 115 V, 400 Hz,
(MAGERD 5358)
single phase a.c. power
from aircraft ground test
socket to pressure controller
Materials
Specificatio
Description
n
Application
NATO
UK
Loctite 222
-
DTD
The ejection gun mounting
8030-99-2251687
900/6003/A bolt locking devices
Grease (XG 293)
G-395
DEF STAN (i) Lubricating O-seals
34B/2241797
91-52
(ii) Command ejection
quick disconnect
Replacements
Item
Reference
Application
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 3 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Item
Reference
Application
O-seal
MBEU 35487
Ejection gun primary
5330-99-1482268
cartridge
O-seal
MBEU 91799
Drogue gun primary
cartridge
Water seal
MBEU 15869
Ejection gun housings
5330-99-1057100
Water seal
MBEU 70334
Drogue gun barrel
5330-99-6172576
Split pin
5315-12-1220984
ALIU and ADU static cables
clevis pin
Split pin
5315-12-1221623
MDC trip rod clevis pin
Split pin
5315-99-9710567
Rocket pack fixed link arm
clevis pin
Chromium-nickel locking
DTD 189A
Wire-locking ejection seat
wire, dia. 0,5 mm
components
30A/6363056
WARNINGS . . .
(1) IMPACT DAMAGE TO THE BREECH TIME DELAY FIRING UNIT (BTDFU). EXTREME CARE
MUST BE TAKEN TO ENSURE THE BTDFU IS NOT DAMAGED DURING HANDLING OR
MAINTENANCE. IMPACT DAMAGE TO THE BTDFU COULD CAUSE A CATASTROPHIC
MALFUNCTION OF THE UNIT AND FAILURE OF THE ESCAPE SYSTEM.
(2) DURING TRANSIT AND MAINTENANCE, THE FIRING UNIT MUST BE STORED IN A SUITABLE
CONTAINER TO PREVENT ANY POSSIBILITY OF IMPACT DAMAGE.
(3) WHEN FITTED TO THE EJECTION GUN, THE FIRING UNIT MUST BE SUITABLY PROTECTED
AGAINST POSSIBLE IMPACT DAMAGE. IF THERE IS ANY SUSPICION THAT THE BTDFU HAS
SUFFERED IMPACT DAMAGE, THE UNIT IS TO BE RETURNED TO THE APPROPRIATE
MAINTENANCE BAY FOR INVESTIGATION.
Note . . .
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 4 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
During the ejection seat and cartridges installation, all O-seals must be examined, replaced if
unserviceable and are to be lubricated with grease prior to fitting.
AIRFRAME
1.
PREPARATION
WARNING . . .
THE PEC MICROPHONE/TELEPHONE (MIC/TEL) CONNECTOR CONTAINS BERYLLIUM/COPPER.
REFER TO THE BERYLLIUM WARNING IN THE PRELIMINARY PAGES OF THIS PUBLICATION.
1.1
PEC aircraft
portion
(a) Supply
Examine
hoses
(b) MIC/TEL
Examine
lead
Note . . .
Item 1.2 is only applicable if the ejection seat/personal equipment connector (PEC) is being refitted after
scheduled maintenance or replacement.
1.2
PEC aircraft
Refit (AP 101b-4104-1el Chap.25-11)
portion
excluding Anti-g and Main Oxygen System
functional checks (see Item 28.1 and 28.2)
1.3
Canopy jettison Look for damage
pipeline
1.4
Aircraft ejection Examine
gun mounting
brackets
1.5
Footspray
Ensure secure
nozzles or
blanking plates
(4 off)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 5 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
1.6
Headspray
Ensure secure
nozzles or
blanking plates
(4 off)
1.7
Cockpit floor
Clean with vacuum cleaner
(end of work block)
AIRFRAME
2.
EXAMINATION
Note . . .
Item 2.1 is a structural integrity item (Y coded) and is to be carried out by an Engineering Technician,
Airframe tradesman.
2.1
Cockpit ejection Examine
seat
attachments
and
surrounding
structure
(end of work block)
WEAPONS
WARNINGS . . .
(1) EXTREME CARE MUST BE EXERCISED WHEN MOVING EJECTION SEATS FITTED TO
EJECTION SEAT MAINTENANCE STANDS. THE SEAT MUST BE IN THE VERTICAL POSITION
WHEN THE SEAT STAND IS TO BE MOVED, REGARDLESS OF THE DISTANCES INVOLVED.
WHEN THE EJECTION SEAT STAND IS STATIONARY, THE BRAKE MUST BE APPLIED.
FULLY EQUIPPED SEATS (I.E. SAFETY EQUIPMENT FITTED) ARE NOT TO BE TILTED
AND/OR ROTATED AS THE SEAT STAND MAY BECOME UNSTABLE AND TOPPLE. IF THERE
IS A REQUIREMENT TO TILT AND/OR ROTATE THE SEAT, THE SAFETY EQUIPMENT (IF
FITTED) IS TO BE REMOVED IAW MP 29-30/1.
(2) ON PRE Mod. 02198 EJECTION SEATS, ONLY PRE MOD.02197 CARTRIDGE SETS
(CARTRIDGE SET, EJECTION SEAT NO.16 MK.1, PART NO. MBEU 60008-4) ARE TO BE
USED.
(3) ON POST Mod. 02198 EJECTION SEATS, ONLY POST MOD.02197 CARTRIDGE SETS
(CARTRIDGE SET, EJECTION SEAT NO.16 MK.2, PART NO. MBEU 115904) ARE TO BE USED.
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 6 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Note . . .
During this procedure, before cartridges are refitted, the mating threads of all firing units/breeches are to
be examined and the firing units screwed fully in to ensure there is no obstruction.
3.
PREPARATION
3.1
Ejection seat
cartridges
(i) Examine
(ii) Ensure correct modification state for
seat being installed
(iii) Ensure correct number and items for
seat
(iv) Ensure marked with the aircraft number,
installed position, installed life expiry
date and lot number
3.2
Rocket pack
(i) Ensure the correct numbers and items
for the seat
(ii) Ensure marked with the installed life
expiry date
(iii) Examine as far as possible
(iv) Ensure the firing unit screws in hand
tight without restriction
3.3
Ejection gun
Ensure the correct items for the seat
and time-delay
firing unit
3.4
Emergency
Ensure indicates FULL
oxygen gauge
3.5
Leg and arm
Operate
restraint
snubbing units
3.6
Leg restraint
line taper plugs
(i) Insert into their housings
(ii) Ensure held securely
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 7 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
3.7
Man portion
dust cover
(i) Remove, ensuring the leg lines release
(ii) Refit
3.8
Go-forward
Operate
mechanism
3.9
Seat linkages
Examine
Note . . .
Item 3.10 is applicable to pre Mod. 02198 installations only.
3.10
Ejection gun
sear withdrawal (i) Rotate the sear withdrawal cross-shaft
safety lock
and linkage forward and engage the
mechanism
locking plunger fully into the recess in
the shackle plunger housing
(ii) Attempt to rotate the seat firing cross
shaft anti-clockwise by applying light
hand pressure to the sear withdrawal
lever assembly. If rotation is not possible
and the ejection gun sear withdrawal
safety lock is engaged, continue with
Item (iii). If rotation is possible and the
ejection gun sear withdrawal safety lock
is not engaged, the seat is to be
returned to the ejection seat bay for
maintenance
(iii) Disengage the sear withdrawal safety
lock and rotate the seat firing cross shaft
to facilitate the fitting of the time delay
firing unit
WARNING . . .
DURING Item 3.11, LUBRICATION OF THE COMMAND FIRING CONNECTOR BALL BEARINGS IS
CARRIED OUT BY USING GREASE (XG-293). REFER TO THE OILS AND LUBRICANTS WARNING
IN THE PRELIMINARY PAGES OF THIS PUBLICATION.
3.11
Command firing
connector ball
(i) Examine
bearing (3 off)
(ii) Ensure lubricated with grease (XG-293)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 8 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
WEAPONS
4.
ROCKET PACK
4.1
Firing unit
(i) Ensure bay maintained
(ii) Ensure firing pin not protruding
4.2
Cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Fit to firing unit
4.3
Firing unit
(i) Fit
(ii) Torque tighten to 55 N.m
(iii) Lock with wire to the propellant tube
Note . . .
During Item 4.4, ensure the correct bolts are used when securing the rocket pack RH MBEU 60566 and
LH MBEU 60565.
4.4
Rocket pack
(i) Position under the seat pan
(ii) Loosely connect remote rocket initiator
flexible hose
(iii) Insert the mounting bolts and ensure
flexible hose routed correctly (Fig. 2)
4.5
Rocket pack
mounting bolts
(i) Torque tighten to 10 N.m
(ii) Lock with wire
4.6
Rocket pack
fixed link arm
(i) Align with the bracket eye end
(ii) Refit the clevis pin and a new split pin,
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 9 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
ensuring the split pin is positioned
outboard of the seat pan attachment
bracket (Fig. 1)
4.7
Remote rocket
initiator flexible
(i) Torque tighten to 21 N.m
hose
(ii) Lock with wire
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 10 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 1. Rocket pack fixed link arm attachment
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 11 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 2. Flexible hose route
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 12 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
WEAPONS
5.
DROGUE GUN
5.1
Barrel
Remove (if fitted)
5.2
Secondary
Remove
firing unit
5.3
Secondary
cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Insert into breech
5.4
Secondary
firing unit
(i) Ensure firing pin is not protruding
(ii) Ensure shear pin is intact
(iii) Refit to breech
(iv) Torque tighten to 28 N.m
(v) Lock with wire
(end of work block)
WEAPONS
6.
REMOTE ROCKET INITIATOR
WARNING . . .
PRIOR TO CARRYING OUT THE ACTIONS DETAILED AT Item 6.1 TO Item 6.4 INCLUSIVE,
ENSURE THE TELESCOPIC PIPE ASSEMBLY IS DISCONNECTED IAW MP 29-10/2 ITEM 12.5(a).
6.1
Firing unit
Remove from the breech
6.2
Cartridge
(i) Ensure the correct modification state for
the seat being installed
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 13 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(ii) Insert into the breech
6.3
Firing unit
(i) Ensure the firing pin is not protruding
(ii) Refit to the breech
(iii) Torque tighten to 28 N.m
6.4
Firing unit
Lock with wire
6.5
Firing link
Ease the sear and reconnect
6.6
Telescopic pipe Connect and fit the securing pin
assembly
(end of work block)
WEAPONS
7.
HARNESS POWER RETRACTION UNIT
7.1
Firing unit
Remove from the breech
7.2
Cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Insert into the breech
7.3
Firing unit
(i) Ensure the firing pin is not protruding
(ii) Ensure the shear pin is intact
(iii) Refit to the breech
(iv) Torque tighten to 28 N.m
(v) Lock with wire
(end of work block)
WEAPONS
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 14 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
8.
MANUAL SEPARATION UNIT
8.1
Manual
Remove (if applicable)
separation firing
link guard
8.2
Firing link
(i) Disconnect and separate from the sear
(ii) Secure to seat pan
8.3
Deleted
8.4
Deleted
8.5
Deleted
8.6
Firing unit
Remove from the breech
8.7
Cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Insert into the breech
8.8
Firing unit
(i) Ensure the firing pin is not protruding
(ii) Refit to the breech
(iii) Fit the spanner and torque tighten to 28
N.m
(iv) Lock with wire
8.9
Deleted
8.10
Deleted
8.11
Deleted
8.12
Manual
Reconnect to the sear using nut and bolt
separation firing
linkage
8.13
Manual
Refit
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 15 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
separation firing
link guard
(end of work block)
WEAPONS
9.
SEAT PAN FIRING UNIT
9.1
Firing handle
Remove
safety pin
CAUTION . . .
To avoid distorting the firing handle linkage, the firing handle is to be removed from its housing
prior to fitting the seat pan firing unit.
9.2
Seat pan firing
Carefully remove from its housing
handle
9.3
Safety pin
Refit to lock manual seperation handle
9.4
Firing unit
Remove from breech
9.5
Cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Insert into breech
9.6
Firing unit
(i) Ensure firing pin is not protruding
(ii) Refit to breech
(iii) Fit spanner with slot at the same side as
sear and torque tighten to 28 N.m
(iv) Lock with wire
9.7
Seat pan firing
handle
(i) Remove safety pin
(ii) Refit into its housing
(iii) Refit safety pin and ensure fully inserted
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 16 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
9.8
Deleted
CAUTION . . .
During Item 9.9, care must be taken to ensure bolt passes through sear attachment hole.
9.9
Firing link
Reconnect to sear using nut and bolt
(end of work block)
WEAPONS
10.
EJECTION GUN
10.1
Housing caps
Remove
10.2
Housings
Inspect water seal and replace if necessary
10.3
Secondary
cartridges
(i) Ensure the correct modification state for
the seat being installed
(ii) Refit
10.4
Housing caps
(i) Refit
(ii) Lock with wire
(end of work block)
WEAPONS NCO
11.
VITAL CHECKS
11.1
Ejection gun
Ensure refitted correctly and locked with wire
housing caps
(end of work block)
WEAPONS
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 17 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
12.
EJECTION GUN INSTALLATION
12.1
Ejection gun
Examine
mounting
brackets
Note . . .
During Item 12.2, if difficulty is experienced in aligning the upper bracket, the bolts securing it may be
loosened, the mounting bolts fitted and the bracket bolts retightened and torque tighten to 5 N.m.
12.2
Ejection gun
Locate in mounting brackets
12.3
Lower mounting
bolt
(i) Refit using self-locking nut
(ii) Using a feeler gauge, check a clearance
of 0,1 mm exists between outer face of
lower bracket and self-locking nut
Note . . .
Sub-Item 12.3 (iii) and (iv)
need only be carried out
where the clearance is less
than 0,1 mm.
(iii) Remove self-locking nut and retain
WARNING . . .
IN SUB-Item 12.3 (iv),
LOCTITE 222 IS APPLIED
TO THE LOWER
MOUNTING BOLT. REFER
TO THE ANAEROBIC
ADHESIVES WARNING IN
THE PRELIMINARY PAGES
OF THIS PUBLICATION.
(iv) Apply Loctite (AP 101B-4100-6A ,
Chap.14-72) to bolt thread and refit
existing self-locking nut, ensure a
minimum clearance of 0,1 mm
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 18 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
CAUTION . . .
During Item 12.4, ensure the correct bolts are used when securing the ejection gun upper
mounting bracket. These are:
long bolt Pt. No.P-720182-007 (front seat) stamped 'F'
short bolt Pt. No.P-720182-009 (rear seat) stamped 'R'
These bolts are NOT interchangeable.
12.4
Upper mounting
bolt
(i) Refit using self-locking nut
(ii) Using a feeler gauge, check a clearance
of 0,1 mm exists between the outer face
of the upper bracket and the self-locking
nut
Note . . .
Sub-Item 12.4 (iii) and (iv)
need only be carried out
where the clearance is less
than 0,1 mm.
(iii) Remove the self-locking nut and retain
WARNING . . .
IN SUB-Item 12.4 (iv),
LOCTITE 222 IS APPLIED
TO THE UPPER
MOUNTING BOLT. REFER
TO THE ANAEROBIC
ADHESIVES WARNING IN
THE PRELIMINARY PAGES
OF THIS PUBLICATION.
(iv) Apply Loctite (AP 101B-4100-6A ,
Chap.14-72) to the bolt thread and refit
existing self-locking nut, ensure a
minimum clearance of 0,1 mm
Note . . .
Item 12.5 is only applicable if the command ejection flexible pipe has not been removed for bay
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 19 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
maintenance.
12.5
Command
Examine
ejection flexible
pipe
Notes . . .
(1) Operations 12.6 and 12.7 are only applicable if the command ejection flexible pipe has been
removed for bay maintenance.
(2) If pipe assemblies MBEU60035 (front cockpit) and MBEU60042 (rear cockpit) are of Aeroquip
manufacture (Chap. 29-00), fit in accordance with Para. 3.4.
12.6
Command
Long pipe with 90-degree angled union fit to
ejection flexible front cockpit bulkhead and lock with wire
pipe - front
12.7
Command
Short pipe with 45-degree angled union fit to
ejection flexible rear cockpit bulkhead and lock with wire
pipe - rear
12.8
Command
ejection quick-
(i) Remove blank
disconnect
(ii) Examine
(iii) Ensure freedom of movement of spring
components
12.9
Command
Reconnect to the ejection gun cross-beam
ejection quick-
forward anchorage bracket. Ensure positive
disconnect
locking of the securing pin by attempting to
static line
withdraw the pin without depressing the
plunger
12.10
Time-delay
Ensure removed
firing unit
12.11
Inner Piston
Ensure:
(i) The V shaped grooves, for locating
upper cross member dowel pin, are
aligned with the centre of the ejection
gun guide rails (Fig. 3)
(ii) The centre of the breech groove is
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 20 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
aligned with the centre of the top latch
window (Fig. 3)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 21 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 3. Correct alignment of inner piston V shaped grooves, inner piston breech groove and outer cylinder
top latch window (pre and post Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 22 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
ELECTRICAL
13.
RELAY BOX 318VE AND 319VE
13.1
Relay box
318VE and
(i) Refit (AP 101b-4104-1la2 Chap.80-10)
319VE (pre
Mod. 02361
(ii) Carry out post installation test (AP 101b-
aircraft)
4104-1la2 MP 80-10/18)
13.1A
Relay box
318VE and
(i) Refit (AP 101b-4104-1la2 Chap.80-10)
319VE (post
Mod. 02361
(ii) Carry out post installation test (AP 101b-
aircraft)
4104-1la2 MP 80-10/18A)
(end of work block)
WEAPONS NCO
14.
VITAL CHECKS
14.1
Rocket pack
(a) Pack
Ensure fitted correctly and locked with wire
(b) Firing unit
Ensure fitted correctly and locked with wire
(c) Remote
Ensure routed correctly (Fig. 2) and locked
rocket initiator
with wire
flexible hose
(d) Fixed link
clevis pin
(i) Ensure fitted
(ii) Ensure split pin is located outboard of
the seat pan attachment bracket
14.2
Drogue gun
(a) Drogue gun Ensure refitted correctly
body
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 23 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(b) Inlet
Ensure reconnected correctly and locked
connector pipe
with wire
(c) Secondary
Ensure refitted correctly and locked with wire
cartridge firing
unit
(d) Trip rod
Ensure reconnected correctly with the
support roller
14.3
Remote rocket
initiator
(a) Initiator unit
Ensure refitted correctly
(b) Firing unit
Ensure refitted correctly and locked with wire
(c) Firing link
Ensure refitted correctly
14.4
Harness power Ensure refitted correctly and locked with wire
retraction unit
firing unit
14.5
Seat pan firing
unit
(a) Safety pin
Ensure refitted and fully inserted
(b) Firing unit
Ensure refitted correctly and locked with wire
CAUTION . . .
During sub-Item 14.5 (c), care must be taken to ensure the seat pan firing unit sear is correctly
oriented, and the firing link/sear attachment bolt has passed correctly through the sear bolt hole.
(c) Firing link
Ensure reconnected correctly.
14.6
Manual
separation unit
(a) Firing unit
Ensure refitted correctly and locked with wire
(b) Firing link
Ensure reconnected correctly
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 24 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(c) Manual
Ensure in the locked position
separation
handle
(d) Manual
Ensure fitted correctly
separation firing
link guard
14.7
Emergency
oxygen cylinder
(i) Ensure refitted correctly
(ii) Ensure the contents gauge indicates
FULL
14.8
Command
Ensure the long pipe with a 90-degree
ejection flexible angled union is fitted to the front cockpit
pipe - front
bulkhead and locked with wire
14.9
Command
Ensure the short pipe with a 45-degree
ejection flexible angled union is fitted to the rear cockpit
pipe - rear
bulkhead and locked with wire
14.10
Ejection Gun
Ensure:
(i) Refitted correctly
(ii) The V shaped grooves, for locating
upper cross member dowel pin, are
aligned with the centre of the ejection
gun guide rails (Fig. 3)
(iii) The centre of the breech groove is
aligned with the centre of the top latch
window (Fig. 3)
(iv) Command ejection quick-disconnect
static line. Ensure reconnected to the
cross-beam forward anchorage bracket.
Ensure positive locking of the securing
pin by attempting to withdraw the pin
without depressing the plunger
(end of work block)
WEAPONS
15.
EJECTION SEAT INSTALLATION
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 25 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Note . . .
Item 15.1 and 15.4 inclusive are applicable only if one ejection seat is already installed or if the canopy
jettison or MDC systems are armed.
15.1
Ejection seat
Ensure a safety pin is fully inserted in seat
pan firing handle
15.2
Canopy jettison Ensure a safety pin is fitted in canopy jettison
system
initiator unit
15.3
Miniature
Ensure a safety pin is fitted in each MDC
detonating cord cord initiator unit
(MDC) system
15.4
Command
Ensure set to REAR
ejection
controller
15.5
MDC trip rod
Examine MDC cross-shaft trip rod lever
(P721143-001) for signs of cracking using a
suitable light source, mirror and x10 magnifier
15.6
Cockpit
Look for loose articles
15.7
Leg and arm
Examine
restraint floor
anchorage
brackets
15.8
PEC static line
Examine
anchorage
bracket
15.9
Seat stabilizing Examine
brackets
15.10
Head spray
Examine
connections
15.11
PEC
(a) Aircraft
Remove protective cover
portion
(b) Supply
Examine
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 26 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
hoses
(c) MIC/TEL
Examine
lead
(d) Static line
Examine
(e) Oxygen
Operate and ensure freedom of movement
valve
(f) Static line
Reconnect to floor anchorage. Ensure routed
correctly (AP 101b-4104-1el Chap.25-11).
Ensure Quick release pin (QRP) is correctly
locked (lock lever at nominal 90 degrees to
axis of pin and anodised lock button
protruding). Without touching anodised lock
button, take up free play in lock lever and
attempt to withdraw pin. The pin must be
securely retained
CAUTION . . .
To prevent the possibilty of damaging the front face of the top latch window housing it is
essential the handwheel is fully screwed in.
15.12
Ejection seat
(i) Fit the lifting sling
(ii) Ensure the handwheel is screwed in fully
(iii) Raise to position above the guide rails
(end of work block)
WEAPONS NCO
15A.
VITAL CHECK
15A.1
Handwheel
Ensure fully screwed in
(end of work block)
WEAPONS
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 27 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
15B.
EJECTION SEAT INSTALLATION
CAUTIONS . . .
(1) To prevent damage to the seat pan actuator/IFF socket connector (2MG front seat, 4MG rear
seat) pull-off lanyard, ensure it will not be trapped when the ejection seat is lowered into
position.
(2) During lowering of seat, ensure the dowel pin, on the right hand inside face of the main beam
upper cross member, locates in the V shaped groove of the inner piston of the ejection gun.
15B.1
Lower slippers
Engage in the guide rails and lower seat,
engaging each set of slippers in turn
15B.2
Ejection Gun
Ensure protruding through the upper cross
Inner Piston
member and the dowel pin on the right hand
inside face of the upper cross member is
located in the V shaped groove of the inner
piston (Fig. 4 or 4A)
15B.3
Handwheel
Remove from the top latch plunger
WARNING . . .
FAILURE TO ENSURE CORRECT ENGAGEMENT OF THE TOP LATCH PLUNGER COULD, DURING
CERTAIN MANOEUVRES, RESULT IN THE SEAT AND OCCUPANT MOVING UP THE GUIDE RAILS
WITH POSSIBLE FATAL RESULTS.
15B.4
Top Latch
(i) Ensure the indicator spigot is flush with,
or slightly protruding from the face of the
top latch plunger
(ii) Ensure the top latch plunger is flush
with, or slightly below, the plunger
housing face (Fig. 5 or 5A) and (Fig. 6
and 7)
15B.5
Deleted
15B.6
Lifting sling
Remove
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 28 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 4. Correct protrusion of inner piston through upper cross members and correct location of dowel pin in
V shaped groove (pre Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 29 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 4A. Correct protrusion of inner piston through upper cross members and correct location of dowel pin in
V shaped groove (post Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 30 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 5. Correct engagement of the top latch (pre Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 31 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 5A. Correct engagement of the top latch (post Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 32 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
NATO RESTRICTED
TOP LATCH PLUNGER IS FLUSH
WITH, OR SLIGHTLY BELOW, THE
PLUNGER HOUSING FACE.
Fig. 6. Correct engagement of the top latch-plunger view (pre and post Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 33 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
NATO RESTRICTED
INDICATOR SPIGOT IS FLUSH WITH,
OR SLIGHTLY PROTRUDING FROM
THE FACE OF TOP LATCH PLUNGER.
Fig. 7. Correct engagement of the top latch-spigot view (pre and post Mod.02198 part B)
(New il ustration)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 34 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
WEAPONS NCO
16.
VITAL CHECKS
WARNING . . .
FAILURE TO ENSURE CORRECT ENGAGEMENT OF THE TOP LATCH PLUNGER COULD, DURING
CERTAIN MANOEUVRES, RESULT IN THE SEAT AND OCCUPANT MOVING UP THE GUIDE RAILS
WITH POSSIBLE FATAL RESULTS.
16.1
Top Latch
(i) Ensure the indicator spigot is flush with,
or slightly protruding from the face of the
top latch plunger
(ii) Ensure the top latch plunger is flush
with, or slightly below, the plunger
housing face (Fig. 5 or 5A) and (Fig. 6
and 7)
16.2
Ejection Gun
Ensure protruding through the upper cross
Inner Piston
member and the dowel pin on the right hand
inside face of the upper cross member is
located in the V shaped groove of the inner
piston (Fig. 4 or 4A)
(end of work block)
WEAPONS
17.
SEAT STRUCTURE CONNECTION
17.1
Drogue gun trip
rod
(i) Examine
(ii) Reconnect to the trip rod attachment
bracket
(iii) Check orientation of connections: yellow
pin head, white anchorage lug, yellow
trip rod, white anchorage lug
(iv) Ensure positive locking of the securing
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 35 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
pin by attempting to withdraw the pin
without depressing the plunger
17.2
Barostatic time-
release unit trip (i) Examine
rod
(ii) Reconnect to the trip rod attachment
bracket rear anchorage point
(iii) Check orientation of connections: yellow
pin head, white anchorage lug, yellow
trip rod, white anchorage lug
(iv) Ensure positive locking of the securing
pin by attempting to withdraw the pin
without depressing the plunger
CAUTION . . .
The MDC trip rod is assembled with a shear pin which is designed to fail just after the MDC has
been fired. The condition of this shear pin is critical to the correct functioning of the escape
system and, because of this, the trip rod must be replaced at the slightest suspicion of damage.
17.3
MDC trip rod
(i) Check the roller for freedom of
movement by rotating the roller slowly
under finger pressure
(ii) Reconnect to the cross-shaft
(iii) Ensure the roller is just touching the
tongue of the lever attached to the
cockpit cross-shaft
17.4
Deleted
17.5
Aircraft
Ensure electrically safe. (Check circuit-
breakers 122 and 165 tripped)
Note . . .
When carrying out Item 17.6, socket connector 2MG/4MG is correctly reconnected when a contrasting
colour stripe under the coupling ring is visible. The contrasting colour stripe is only visible when the fully
mated condition is achieved.
17.6
Seat pan
actuator/IFF
(i) Remove from its stowage
socket
(ii)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 36 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
connector
Examine
(2MG front
seat, 4MG rear
(iii) Reconnect to the mating plug connector
seat)
17.7
PEC aircraft
Reconnect to seat portion
portion
17.8
Arm and leg
restraint lines
(i) Remove QRP from leg restraint line
securing brackets
(ii) Reconnect to floor anchorage. Ensure
QRP is correctly locked (lock lever at
nominal 90 degrees to axis of pin and
anodised lock button is protruding).
Without touching the anodised lock
button, take up free play in lock lever
and attempt to withdraw pin. The pin
must be securely retained
(iii) Ensure arm restraint line is secured to
floor anchorage with long side of link
uppermost and point facing forward
(iv) Ensure roller is positioned to rear of floor
anchorage
(v) Ensure link rotates freely to a vertical
position when arm restraint system is
manually tensioned
(end of work block)
WEAPONS
18.
BAROSTATIC TIME-RELEASE UNIT
18.1
Breech
Remove from firing body
18.2
Cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Insert into breech
18.3
Firing body
Ensure the firing pin is not protruding
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 37 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
18.4
Breech
(i) Insert into firing body
(ii) Torque tighten to 28 N.m
(iii) Lock with wire
(end of work block)
WEAPONS
19.
EJECTION GUN
WARNING . . .
DURING Item 19.1, LUBRICATION OF THE PRIMARY CARTRIDGE O-SEAL IS CARRIED OUT BY
USING GREASE (XG-293). REFER TO THE OILS AND LUBRICANTS WARNING IN THE
PRELIMINARY PAGES OF THIS PUBLICATION.
19.1
Primary
cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Fit new O-seal lubricated with grease
(XG-293)
(iii) Insert into breech
Note . . .
It should be noted that the foil identification labels referred to in the following caution were removed under
log modification 4326 and replaced with the details engraved onto the BTDFU. However some BTDFUs
with foil identification labels may still remain in circulation.
CAUTIONS . . .
(1) During Item 19.2, care must be taken during the fitment of the time-delay firing unit to ensure
the foil identification label is not damaged by the breech dowel pins, causing pieces of the
label to fall onto the primary cartridge. Damaged labels must be replaced.
(2) When screwing the BTDFU into the ejection gun, the drogue shackle link must be rotated
forward to prevent the BTDFU rubbing against the link and eroding protective finish.
(3) Post Mod.02198 Part B; When the final torque tightening load is applied to the BTDFU, ensure
the gas adaptor on top of the BTDFU is positioned such that it does not foul against the
ejection seat upper cross member/gas shackle.
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 38 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
19.2
Time delay
firing unit
(i) Ensure the firing pin is not protruding
(ii) Insert into breech past the dowel pins
(iii) Pre Mod.02198 Part B - tighten; Post
Mod.02198 Part B - torque load to 28
N.m
(iv) Lock with wire
Note . . .
Item 19.3 is applicable to pre Mod. 02198 installations only.
19.3
Sear withdrawal
cross-shaft and (i) Rotate forward and engage locking
linkage
plunger fully into recess in shackle
plunger housing
(ii) Attempt to rotate seat firing cross shaft
anti-clockwise by applying light hand
pressure to sear withdrawal lever
assembly. If rotation
is not possible and
ejection gun sear withdrawal safety lock
is engaged, continue with operation (iii).
If rotation
is possible and ejection gun
safety lock
is not engaged, the seat is
to be removed and returned to seat bay
for maintenance
(iii) Connect linkage to sear using a nut and
bolt
Note . . .
Item 19.4 is applicable to post Mod. 02198 installations only.
19.4
Time-delay
firing unit gas
(i) Remove pins
supply flexible
hose
(ii) Connect to the gas adaptor on top of the
time-delay firing unit
(iii) Fit the quick-release pins (2 off) to
secure the hose to the time-delay firing
unit. Ensure the ends of the quick
release pins (2 off) are not in contact
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 39 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
with the castellations of the BTDFU
(iv) Without depressing the release plunger,
ensure the quick release pins are
correctly locked and free to move
(v) If any of the above criteria cannot be
met, remove the quick release pins (2
off) and disconnect the gas pipe from
the BTDFU
(vi) Holding the gas pipe (MBEU 116671)
rotate the connecting block (MBEU
111476) on the pipe to ease the
repositioning of the quick release pins
(vii) Refit the gas pipe to the BTDFU, refit
the quick release pins (2 off) and repeat
the checks at 19.4 (iii) and (iv)
(end of work block)
WEAPONS
20.
DROGUE GUN
20.1
Barrel
Inspect water seal and replace if necessary
WARNING . . .
DURING Item 20.2, LUBRICATION OF THE PRIMARY CARTRIDGE O-SEAL IS CARRIED OUT BY
USING GREASE (XG-293). REFER TO THE OILS AND LUBRICANTS WARNING IN THE
PRELIMINARY PAGES OF THIS PUBLICATION.
20.2
Primary
cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Fit new O-seal lubricated with grease
(XG-293)
(iii) Insert into the barrel
20.3
Firing body
Ensure the firing pin is not protruding
20.4
Barrel
(i) Remove shear pin
(ii)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 40 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Screw into body
(iii) Torque tighten to 18 N.m
(iv) Turn piston inside barrel so that piston
fork end groove faces fore and aft as
near as possible. Align hole in piston
with nearest shear pin hole in barrel.
Unscrew the barrel sufficiently to allow
fitment of special shear pin
(v) Fit special shear pin with head inboard,
splay pin legs to lock pin
(vi) Torque tighten to 18 N.m and lock with
wire
(end of work block)
WEAPONS
21.
SAFETY EQUIPMENT
21.1
Safety
Refit (MP 29-30/2)
equipment
(end of work block)
WEAPONS
22.
PROCEDURE
22.1
Head spray
Reconnect
connections
22.2
Command
Reconnect to sequencing manifold ensuring
ejection quick-
red line on sequencing manifold is not visible
disconnect
when viewed from the horizontal
(end of work block)
WEAPONS NCO
23.
VITAL CHECKS
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 41 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
23.1
Ejection seats
Ensure the safety pin is fully inserted in each
seat pan firing handle
23.2
Canopy jettison Ensure the safety pin is fitted in the canopy
system
jettison initiator unit
23.3
MDC
Ensure a safety pin is fitted in each MDC
initiator unit
23.4
Command
Ensure set to REAR
ejection
controller
(end of work block)
ELECTRICAL
24.
EXTERNAL POWER SUPPLY
24.1
External a.c.
Connect and switch ON (AP 101B-4104-1HA
power supply
Chap.55-40)
24.2
Circuit-breaker
Set (AP 101B-4104-1HA Chap.55-50)
(CB) 122
(end of work block)
WEAPONS NCO
25.
VITAL CHECK
CAUTION . . .
Prolonged operation of the motor will cause overheating; the seat pan actuator must not be
operated for more than 1 min in 8 min.
25.1
Seat pan
Operate over the complete range, ensuring
actuator
the aircraft portion PEC remains connected
with the seat pan in the highest position
(end of work block)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 42 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
ELECTRICAL
26.
EXTERNAL POWER SUPPLY
26.1
External a.c.
Switch OFF (AP 101B-4104-1HA Chap.55-
power supply
40)
(end of work block)
WEAPONS NCO
27.
VITAL CHECKS
27.1
Seat
sequencing
(i) Ensure reconnected correctly
system
telescopic pipes (ii) Ensure the securing pin has been refitted
27.2
BTRU
(a) Firing unit
Ensure refitted correctly and locked with wire
(b) Trip rod
(i) Ensure reconnected to cross-beam rear
anchorage point with trip rod (yellow)
located between attachment bracket
lugs (white) and securing pin (yellow
head) positively located through
attachment bracket and trip rod
(ii) Ensure positive locking of the securing
pin by attempting to withdraw the pin
without depressing the plunger
27.3
Ejection gun
time-delay firing
unit
(a) Unit
Ensure refitted correctly and locked with wire
Note . . .
Item 27.3 (b) is applicable to pre Mod. 02198 installations only.
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 43 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(b) Sear
withdrawal
(i) Ensure the linkage is correctly
cross-shaft and
connected to sear
linkage
(ii) Ensure the locking plunger is fully
engaged in recess in shackle plunger
housing
Note . . .
Item 27.4 is applicable to post Mod. 02198 installations only.
27.4
Time-delay
firing unit gas
(i) Ensure connected correctly
supply flexible
hose
(ii) Ensure the ends of the quick release
pins (2 off) are not in contact with the
castellations of the BTDFU
(iii) Without depressing the release plunger,
ensure the quick release pins are
correctly locked and free to move
27.5
Drogue gun
(a) Piston
Ensure piston fork-end groove faces, as near
as possible, fore and aft
(b) Special
Ensure fitted head inboard and ends splayed
shear pin
(c) Barrel
Ensure refitted correctly and locked with wire
(d) Trip rod
(i) Ensure reconnected to cross beam
anchorage point with trip rod (yellow)
located between attachment bracket
lugs (white) and securing pin (yellow
head) positively located through
attachment bracket and trip rod
(ii) Ensure positive locking of the securing
pin by attempting to withdraw the pin
without depressing the plunger
(iii) Ensure remote rocket initiator static line
has been reconnected
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 44 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
27.6
Remote rocket
initiator
(i) Ensure reconnected correctly
telescopic pipe
(ii) Ensure securing pin has been refitted
27.7
MDC trip rod
(i) Ensure reconnected correctly
(ii) Check the roller for freedom of
movement by rotating the roller slowly
under finger pressure
(iii) Ensure roller is just touching tongue of
lever attached to cockpit cross-shaft
27.8
PEC
(a) Aircraft
Ensure reconnected correctly
portion
(b) Static line
Ensure reconnected and routed correctly to
floor anchorage brackets. Ensure QRP is
correctly locked (lock lever at nominal 90
degrees to axis of pin and anodised button is
protruding). Without touching the anodised
lock button, take up free play in lock lever
and attempt to withdraw pin, the pin must be
securely retained.
27.9
Leg and arm
restraint lines
(i) Ensure reconnected and routed
correctly to floor anchorage brackets.
Ensure QRP is correctly locked (lock
lever at nominal 90 degrees to axis of
pin and anodised button is protruding).
Without touching the anodised lock
button, take up free play in lock lever
and attempt to withdraw pin, the pin
must be securely retained
(ii) Ensure arm restraint line is secured to
floor anchorage with long side of link
uppermost and point facing forward
(iii) Ensure roller is positioned to rear of floor
anchorage
(iv) Ensure link rotates freely to a vertical
position when arm restraint system is
manually tensioned
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 45 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Note . . .
When carrying out Item 27.10, socket connector 2MG/4MG is correctly reconnected when a contrasting
colour stripe under the coupling ring is visible. The contrasting colour stripe is only visible when the fully
mated condition is achieved.
27.10
Seat pan
Ensure correctly reconnected to its mating
actuator/IFF
plug connector
socket
connector
(2MG front
seat, 4MG rear
seat)
27.11
Command
ejection quick-
(i) Ensure reconnected to seat manifold
disconnect
(ii) Ensure red line on seat manifold is not
visible when viewed from the horizontal
(iii) Ensure static line is reconnected to
cross-beam forward anchorage point.
Ensure positive locking of the securing
pin by attempting to withdraw the pin
without depressing the plunger
27.12
Parachute
Ensure refitted correctly
container
27.13
Parachute
Ensure correctly located above the release
withdrawal line
mechanism
lock
27.14
Drogue
Ensure refitted correctly in the shackle
withdrawal
shackle bolt
27.15
Shackle safety
Ensure routed correctly and intact
tie
27.16
Drogue
withdrawal line
(i) Ensure routed correctly
(ii) Ensure reconnected to the drogue gun
piston
27.17
Headspray
Ensure connected correctly
connections
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 46 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
27.18
Harness
assembly
(a) Upper
Ensure refitted correctly and held by the seat
harness
locks
(b) Lap straps
Ensure refitted correctly and held by the seat
locks
(c) Negative-g
Ensure refitted correctly and held by the seat
strap
locks
27.19
PSP release
Ensure routed and reconnected correctly
connectors
27.20
Sticker straps
Ensure routed and reconnected correctly
WARNING . . .
AUTOMATIC LIFERAFT INFLATION UNIT (ALIU) BATTERY STATIC LINE CONNECTIONS ARE
ONLY APPLICABLE WHEN FITTING TEMPERATE, TROPICAL, DESERT SUMMER, DESERT
WINTER AND JUNGLE VARIANT PSPs.
27.21
PSP
(a) ALIU battery Ensure the static line is correctly
static line
reconnected to the seat pan anchor bracket
with the clevis pin fitted from inboard to
outboard and secured with split pin
(b) Lowering
Ensure reconnected to sticker clip
line arrowhead
connector
(c) ADU
Ensure the static line is correctly
operating static reconnected to the seat pan anchor bracket
line
with the clevis pin fitted from inboard to
outboard and secured with split pin
(d) ADU mode
Ensure set to AUTO
selector
(e) ADU safety
Ensure removed
pin
(f) Right hand
Ensure secure by applying a gentle pull
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 47 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
side PSP D-ring upwards
27.22
Maintenance
Enter as follows:
documentation
(i) Certified vital checks satisfactorily
completed
(ii) Record the following information in
respect of all ejection seat cartridges:
(a) Maker/filler
(b) Lot No.
(c) Date of manufacture
(d) Date of renewal
(end of work block)
AIRFRAME
28.
PEC SEAT PORTION
28.1
Main oxygen
Carry out (AP 101b-4104-1el MP 25-11/1)
system
functional test
Note . . .
Item 28.2 is only applicable if the ejection seat/PEC is being refitted after scheduled maintenance or
replacement.
28.2
Anti-G system
Carry out (AP 101b-4104-1ek MP 24-40/1)
functional test
(end of work block)
AVIONIC
29.
PEC SEAT PORTION
29.1
MIC/TEL
Carry out an inter-cockpit check (AP 101B-
system (pre
4104-1JA MP 60-40/1)
Mod. 02500
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 48 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
29.1A
MIC/TEL
Carry out an inter-cockpit check (AP 101B-
system post
4104-1JA MP 60-40A/1)
(Mod. 02500)
(end of work block)
AVIONIC
Note . . .
Block 30. is applicable only to pre Mod. 02383 aircraft.
30.
PREPARATION - IFF INTEGRITY TEST
Note . . .
Operation 30.1 is applicable only to aircraft fitted with the Mk.10 IFF system.
30.1
Transponder:
(a) MASTER
Ensure set to OFF
switch
(b) MODE 1
Set to 0000
code selectors
(c) MIL/CIV
Set to MIL
switch
Note . . .
Operation 30.2 is applicable only to aircraft fitted with the Mk.12 IFF system.
30.2
Transponder:
(a) MASTER
Ensure set to OFF
switch
(b) M-1/OUT
Set to M-1
switch
(c) M-2/OUT
Set to M-2
switch
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 49 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(d) M-3A/OUT
Set to M-3A
switch
(e) M-C/OUT
Set to M-C
switch
(f) MODE 1
Set to 00
code selectors
(g) MODE 3A
Set to 0000
code selectors
30.3
IFF-701 test set Carry out self test as follows:
(a) POWER key Press
(b) SELF TEST Press to enter the self test screen
key
(c) ANTENNA
Terminate with 50 ohm connector
connector
(d) RUN/STOP
Press to initiate self test and ensure when
key
completed, the GREEN LED is illuminated
and check the display to verify that all
modules have passed
Note . . .
Operations 30.4, 30.5 and 30.6 are applicable only to aircraft fitted with the Mk.10 IFF system.
30.4
Radome
Open and secure (AP 101B-4104-1EA2
assembly and
Chap.15-11)
radar skirt
30.5
Antenna
Disconnect the lower antenna connector
switching unit
from the antenna switching unit LOWER SK-
B
30.6
IFF-701 test set Connect to the test set RF I/O socket and the
coax cable
antenna switching unit lower antenna socket
LOWER SK-B
30.7
IFF-701 test set Press to display the 1st line test screen (will
AUTO TEST
show the results of the last AUTO TEST on
key
the display)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 50 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Note . . .
Operation 30.8 is applicable only to aircraft fitted with the Mk.10 IFF system.
30.8
IFF-701 test set Select the required configuration as
SLEW key
MK10+LOB
Note . . .
Operation 30.9 is applicable only to aircraft fitted with the Mk.12 IFF system.
30.9
IFF-701 test set Select the required configuration as MK12-
SLEW key
M4
(end of work block)
ELECTRICAL
Note . . .
Block 31. is applicable only to pre Mod. 02383 aircraft.
31.
PREPARATION
31.1
CB 165
Ensure set (AP 101B-4104-1HA Chap.55-50)
31.2
External a.c.
Connect and switch ON (AP 101B-4104-1HA
power supply
Chap.55-40)
(end of work block)
AVIONIC
Note . . .
Block 32. is applicable only to aircraft fitted with the Mk.10 IFF system.
32.
PROCEDURE
32.1
Antenna test
Set to LOWER
switch (nose
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 51 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
landing gear
compartment)
32.2
Transponder:
(a) MASTER
switch
(i) Set to SBY and allow 2 min warm-up
period
(ii) Set to N
(b) TEST lamp
Press and ensure lit
(c) TEST switch Press and ensure the TEST lamp is lit
32.3
IFF-701 test set Select the MODE 1,2 REPLY TEST
SEL key
32.4
IFF-701 test set Ensure the MODE 1 code reply is not
MODE 1,2
preceded by the letters EM
REPLY TEST
screen
32.5
CB 170
Trip (AP 101B-4104-1HA Chap.55-50)
32.6
IFF-701 test set Ensure the MODE 1 code reply is preceded
MODE 1,2
by the letters EM
REPLY TEST
screen
32.7
CB 170
Set (AP 101B-4104-1HA Chap.55-50)
32.8
IFF-701 test set Ensure the MODE 1 code reply is not
MODE 1,2
preceded by the letters EM
REPLY TEST
screen
32.9
IFF-701 test set Press to end MODE 1,2 REPLY TEST
RUN/STOP key
32.10
IFF-701 test set Press to power down test set
POWER key
32.11
Transponder
Set to OFF
MASTER switch
32.12
IFF-701 test set Disconnect from the test set antenna socket
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 52 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
coax cable
and the antenna switching unit lower
antenna socket (23 SKB)
32.13
Antenna
Reconnect the lower antenna to socket 23
switching unit
SKB
32.14
Radome
Close (AP 101B-4104-1EA2 Chap.15-11)
assembly and
radar skirt
32.15
Antenna test
Set to FLIGHT
switch
(end of work block)
AVIONIC
Note . . .
Block 33. is applicable only to aircraft fitted with the Mk.12 IFF system.
33.
PROCEDURE
33.1
Transponder:
(a) MASTER
switch
(i) Set to SBY and allow 3 min warm-up
period
(ii) Set to N
(b) TEST push
Press and ensure the FAULT indicator is not
button
white
33.2
IFF-701 test set Press to select MODE 1, 2 REPLY TEST
SEL key
33.3
IFF-701 test set Press to initiate MODE 1, 2 REPLY TEST
RUN/STOP key and ensure MODE 1 code reading is correct
33.4
CB 170
Trip (AP 101B-4104-1HA Chap.55-50)
33.5
Radome
Open (AP 101B-4104-1EA2 Chap.15-11)
assembly and
radar maxi skirt
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 53 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
33.6
Connectors
Locate (zone 12) and disconnect, fit 50
Ω
23SKB and
termination lead to 23SKC
23SKC
33.7
IFF-701 test set Connect coaxial cable between test set
ANTENNA connector and 23SKb (stowage
point)
33.8
Transponder
Set to STBY
MASTER switch
33.9
CB 170
Set (AP 101B-4104-1HA Chap.55-50)
33.10
IFF-701 test set Press and ensure the MODE 1 code reply is
RUN/STOP key suffixed by the letters EM
33.11
IFF-701 test set Press to end MODE 1, 2 REPLY TEST
RUN/STOP key
33.12
IFF-701 test set Disconnect coaxial cable between test set
ANTENNA connector and 23SKb
33.13
Connector
Remove the 50
Ω termination and reconnect
23SKC
to to 23SKc at the aircraft stowage point
33.14
Connectors
Reconnect to 23SKb at the aircraft stowage
23SKB
point
33.15
Radome
Close (AP 101B-4104-1EA2 Chap.15-11)
assembly and
radar maxi skirt
33.16
IFF-701 test set Press to power down test set
POWER key
33.17
Transponder
Set to OFF
MASTER switch
(end of work block)
ELECTRICAL
Note . . .
Block 34. is applicable only to pre Mod. 02383 aircraft.
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 54 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
34.
COMPLETION
34.1
External a.c.
Switch OFF and disconnect (AP 101B-4104-
power supply
1HA Chap.55-40)
(end of work block)
AVIONIC
Note . . .
Block 35. is applicable only to post Mod. 02383 aircraft.
35.
PREPARATION - SUCCESSOR IDENTIFICATION FRIEND OR FOE (SIFF) INTEGRITY TEST
35.1
IFF
Set to 'ENABLE'
inhibit/enable
switch
35.2
Access door
Open and secure (AP 101B-4104-1CD MP
R122
07-40/1)
35.3
Transponder
control and
display unit
(TCDU):
(a) Mode
Set to OUT position
enable switches
M1, M2, M3/A,
MC, MS and M5
(b) MASTER
Ensure in the PULL OFF position
switch
35.4
RAPID TAKE
Set to FLIGHT
OFF panel
IGNITION
switch
35.5
IFF-701 test set Carry out self test as follows:
(a) POWER key Press
(b) SELF TEST Press to enter the self test screen
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 55 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
key
(c) ANTENNA
Terminate with 50 ohm connector
connector
(d) RUN/STOP
Press to initiate self test and ensure when
key
completed, the GREEN LED is illuminated
and check the display to verify that all
modules have passed
(end of work block)
ELECTRICAL
Note . . .
Block 36. is applicable only to post Mod. 02383 aircraft.
36.
PREPARATION
36.1
CB 322
Ensure tripped (AP 101B-4104-1HA Chap.55-
50)
36.2
CB 3, 165, 170
Ensure set (AP 101B-4104-1HA Chap.55-50)
and 355
36.3
External a.c.
Connect and switch ON (AP 101B-4104-1HA
power supply
Chap.55-40)
(end of work block)
AVIONIC
Note . . .
Block 37. is applicable only to post Mod. 02383 aircraft.
37.
PROCEDURE
37.1
Transponder
Disconnect aerial connectors 48SKD (J2)
and 48SKE (J3)
CAUTION . . .
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 56 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
To prevent damage to IFF-701 test set, do not connect the transponder to the ANTENNA
connector when set for direct connect.
37.2
IFF-701 test set Connect the direct connect cable from RF
I/O socket directly to J3 on the transponder
37.3
50
Ω dummy
Connect to J2 on the transponder
load
37.4
IFF-701 test set Press to display the 1st line test screen (will
AUTO TEST
show the results of the last AUTO TEST on
key
the display)
37.5
IFF-701 test set Set the required configuration as MK12S-M4
SLEW key
37.6
TCDU:
(a) MASTER
Set to STBY
switch
(b)
Ensure SELF TEST displayed, followed by
Alphanumeric
TEST PASS displayed for 5s on completion
displays
of PBIT
(c) MASTER
Set to NORM
switch
(d) MODE 1
Set to 7300
CODE
(e) MODE 2
Take note of the preset MODE 2 code, then
CODE
set it to 7777
37.7
CB 170
Trip (AP 101B-4104-1HA Chap.55-50)
37.8
TCDU:
Alphanumeric
Ensure EMER EMER displayed
display
37.9
IFF-701 test set Select MODE 1, 2 REPLY TEST
SEL key
37.10
IFF-701 test set Press and ensure MODE 1 code of 7300 EM
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 57 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
RUN/STOP key and MODE 2 code of 7777 EM displayed
37.11
IFF-701 test set Select ATCRBS REPLY TEST
SEL key
37.12
IFF-701 test set Press and ensure MODE 3/A code of 7700
RUN/STOP key EM displayed
37.13
CB 170
Set (AP 101B-4104-1HA Chap.55-50)
37.14
TCDU:
(a)
Ensure EMER EMER no longer displayed
Alphanumeric
display
(b) MODE 2
Reset MODE 2 code to that noted at Step
CODE
37.6(e)
(c) MASTER
Set to PULL OFF position
switch
37.15
IFF-701 test set Press to power down test set
POWER key
37.16
IFF-701 test set Disconnect direct connect cable from RF I/O
socket
37.17
Transponder
(i) Disconnect direct cable from J3
(ii) Disconnect 50
Ω dummy load from J2
(iii) Connect aerial connectors 48SKD (J2)
and 48SKE (J3)
(end of work block)
AVIONIC
Note . . .
Block 38. is applicable only to post Mod. 02383 aircraft.
38.
COMPLETION
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 58 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
38.1
RAPID TAKE
Set to OFF
OFF panel
IGNITION
Switch
38.2
External a.c.
Switch OFF and disconnect (AP 101B-4104-
power supply
1HA Chap.55-40)
38.3
Access door
Close and secure (AP 101B-4104-1CD MP
R122
07-40/1)
(end of work block)
WEAPONS SNCO
39.
INDEPENDENT CHECKS
39.1
Seat installation Carry out independent checks (MP 29-10/6)
(end of work block)
AIRFRAME
40.
COMPLETION
40.1
Canopy
Fit (AP 101B-4104-1EA2 MP 15-13/2)
(end of work block)
WEAPONS
41.
MAINTENANCE DOCUMENTATION
Note . . .
Post Mod. 02198B only - Due to the increase in weight of the post Mod.02198B seat, following initial
installation of the post Mod.02198B seat(s), the mass and moment information of the aircraft is to be
updated accordingly iaw para.12 Mod.02198B Lflt and AP 101B-4104-1CG Chap.10-30.
41.1
Maintenance
Complete
documentation
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 59 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
(END OF MP)
MP 29-10/3 MARCH 11
MARCH 2011
NATO RESTRICTED
Page 60 of 60
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
29-10 EJECTION SEATS
MAINTENANCE PROCEDURE 29-10/3A (33 work blocks) 03/11
EJECTION SEAT AND CARTRIDGES - REINSTALLATION POST REMOVAL FOR ACCESS [*** MANDATORY
***]
MANDATORY MAINTENANCE PROCEDURE
THIS PROCEDURE IS TO BE USED ONLY WHEN THE SEAT(S) ARE REINSTALLED FOLLOWING REMOVAL
FOR ACCESS.
ASSOCIATED CARDS
POWER
DAP 101B-4100-6A
DAP 101B-4104-1EL
DAP 101B-4104-1EP
DAP 101B-4104-1HA
DAP 101B-4104-1LA2
MP 07-40/1
YES
MP 15-13/2
MP 24-40/1
MP 25-11/1
MP 29-10/6
MP 29-30/2
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the work
detailed on this card
Note . . .
This procedure is
not applicable if the canopy is in situ and is to remain in situ, during installation of the
ejection seat. For installation of the ejection seat with the canopy in situ, refer to MP 29-10/8.
Equipment
Item
Reference
Application
Ejection seat servicing
MBSS 1
Holding the seat
stand (MAGERD 7501)
1730-99-4527666
1730-99-7922567
1730-99-7922568
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 1 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Item
Reference
Application
4920-99-7304955
4920-99-7669635
4920-99-7757632
Ejection seat servicing
27L/6176141
Attaching seat to stand
stand adaptor (MAGERD
7503)
Sling (MAGERD 2628)
P-890624-403
Lifting the seat
3940-99-6551831
Container
MBEU 63162
Storing cartridges
(MAGERD 7555)
8140-99-6640158
Container
-
Storing rocket pack
First line tool kit (MAGERD
MBEU 56400-403 4920- Refitting the seat
2549)
99-6596649
Vacuum cleaner
As available
Cleaning the cockpit
Torque wrench (2,5 N.m to
As available
Torque tightening rocket
11 N.m)
pack bolts
Torque wrench (12 N.m to
As available
Torque tightening firing units
68 N.m)
Feeler gauge
As available
Clearance check between
ejection gun mounting
brackets and ejection gun
mounting bolt locking
devices
Mobile servicing platform:
As available
Access to aircraft
- height 2 m
External electrical power
4FE/9722 or
Electrical power supplies to
supply source 200 V, 400
4FE/2141397
aircraft
Hz, 3-phase a.c. (MAGERD
5301)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 2 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Item
Reference
Application
Test set IFF/SSR, Type IFF-
10S/3925249
Testing the IFF
701 (MAGERD TBN)
Type C-to-TNC adaptor
-
Adapting test IFF/SSR to
the antenna switching unit
Splitter box
P-891350-403
Routeing 115 V, 400 Hz,
(MAGERD 5358)
single phase a.c. power
from aircraft ground test
socket to pressure controller
Materials
Specificatio
Description
n
Application
NATO
UK
Loctite 222
-
DTD
The ejection gun mounting
8030-99-2251687
900/6003/A bolt locking devices
Grease (XG 293)
G-395
DEF STAN (i) Lubricating O-seals
34B/2241797
91-52
(ii) Command ejection
quick disconnect
Replacements
Item
Reference
Application
O-seal
MBEU 35487
Ejection gun primary
5330-99-1482268
cartridge
O-seal
MBEU 91799
Drogue gun primary
cartridge
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 3 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Item
Reference
Application
Water seal
MBEU 15869
Ejection gun secondary
5330-99-1057100
cartridges.
Water seal
MBEU 70334
Drogue gun barrel
5330-99-6172576
Chromium-nickel locking
DTD 189A
Wire-locking ejection seat
wire, dia. 0,5 mm
30A/6363056
components
Split pin
5315-12-1220984
ALIU and ADU static cables
clevis pin
Split pin
5315-12-1221623
MDC trip rod clevis pin
Split pin
5315-99-9710567
Rocket pack fixed link arm
clevis pin
WARNINGS . . .
(1) IMPACT DAMAGE TO THE BREECH TIME DELAY FIRING UNIT (BTDFU). EXTREME CARE
MUST BE TAKEN TO ENSURE THE BTDFU IS NOT DAMAGED DURING HANDLING OR
MAINTENANCE. IMPACT DAMAGE TO THE BTDFU COULD CAUSE A CATASTROPHIC
MALFUNCTION OF THE UNIT AND FAILURE OF THE ESCAPE SYSTEM.
(2) DURING TRANSIT AND MAINTENANCE, THE FIRING UNIT MUST BE STORED IN A SUITABLE
CONTAINER TO PREVENT ANY POSSIBILITY OF IMPACT DAMAGE.
(3) WHEN FITTED TO THE EJECTION GUN, THE FIRING UNIT MUST BE SUITABLY PROTECTED
AGAINST POSSIBLE IMPACT DAMAGE. IF IT IS SUSPECTED THE BTDFU HAS SUFFERED
IMPACT DAMAGE, THE UNIT IS TO BE RETURNED TO THE APPROPRIATE MAINTENANCE
BAY FOR INVESTIGATION.
Notes . . .
(1) This procedure is only to be used if the seat has been removed for access iaw MP 29-10/2A and no
components have been replaced (except Leg Restraint Lines - Replacement MP 29-10/17, Harness
Power Retraction Unit - Replacement MP 29-10/18, Arm Restraint Line - Replacement MP 29-10/19
and Seat Pan Firing Unit - Replacement MP 29-10/20). The seat must not have been disarmed other
than that required to remove the seat from the cockpit, i.e.
ejection gun primary cartridge
drogue gun primary cartridge
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 4 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
BTRU cartridge
If components have been replaced other than those listed above or further disarming performed, the
installation procedure at MP 29-10/3 is to be used.
(2) During the ejection seat and cartridges installation, all O-seals must be examined, replaced if
unserviceable and are to be lubricated with grease prior to fitting.
AIRFRAME
1.
PREPARATION
WARNING . . .
THE PEC MICROPHONE/TELEPHONE (MIC/TEL) CONNECTOR CONTAINS BERYLLIUM/COPPER.
REFER TO THE BERYLLIUM WARNING IN THE PRELIMINARY PAGES OF THIS PUBLICATION.
1.1
PEC aircraft
portion
(a) Supply
Examine
hoses
(b) MIC/TEL
Examine
lead
1.2
Canopy jettison Look for damage
pipeline
1.3
Aircraft ejection Examine as far as possible
gun mounting
brackets
1.4
Footspray
Ensure secure
nozzles or
blanking plates
(4 off)
1.5
Headspray
Ensure secure
nozzles or
blanking plates
(4 off)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 5 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
1.6
Cockpit floor
Clean with vacuum cleaner
(end of work block)
AIRFRAME
2.
EXAMINATION
Note . . .
Item 2.1 is a structural integrity item (Y coded) and is to be carried out by an Engineering Technician
Airframe tradesman.
2.1
Cockpit ejection Examine
seat
attachments
and
surrounding
structure
(end of work block)
WEAPONS
WARNINGS . . .
(1) EXTREME CARE MUST BE EXERCISED WHEN MOVING EJECTION SEATS FITTED TO
EJECTION SEAT MAINTENANCE STANDS. THE SEAT MUST BE IN THE FULLY UPRIGHT
POSITION WHEN THE SEAT STAND IS TO BE MOVED, REGARDLESS OF DISTANCES
INVOLVED.
(2) WHEN THE EJECTION SEAT STAND IS STATIONARY, THE BRAKE MUST BE APPLIED.
(3) FULLY EQUIPPED SEATS (I.E. SAFETY EQUIPMENT FITTED) ARE NOT TO BE TILTED
AND/OR ROTATED AS THE SEAT STAND MAY BECOME UNSTABLE AND TOPPLE. IF THERE
IS A REQUIREMENT TO TILT AND/OR ROTATE THE SEAT, THE SAFETY EQUIPMENT (IF
FITTED) IS TO BE REMOVED IAW MP 29-30/1.
(4) ON PRE Mod. 02198 EJECTION SEATS, ONLY PRE MOD.02197 CARTRIDGE SETS
(CARTRIDGE SET, EJECTION SEAT NO.16 MK.1, PART NO. MBEU 60008-4) ARE TO BE
USED.
(5) ON POST Mod. 02198 EJECTION SEATS, ONLY POST MOD.02197 CARTRIDGE SETS
(CARTRIDGE SET, EJECTION SEAT NO.16 MK.2, PART NO. MBEU 115904) ARE TO BE USED.
Note . . .
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 6 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
During this procedure, before cartridges are refitted, the mating threads of all firing units/breeches are to
be examined and the firing units screwed fully in to ensure there is no obstruction.
3.
PREPARATION
3.1
Ejection seat
cartridges to be (i) Examine
fitted
(ii) Ensure correct modification standard for
seat being installed
(iii) Ensure correct number and items for
seat
(iv) Ensure marked with the aircraft number,
installed position, installed life expiry
date and lot number
3.2
Emergency
Ensure indicates 'FULL'
oxygen gauge
3.3
Leg and arm
Operate
restraint
snubbing units
3.4
Leg restraint
line taper plugs
(i) Insert into their housings
(ii) Ensure held securely
3.5
Man portion
dust cover
(i) Remove, ensuring the leg lines release
(ii) Refit
3.6
Go-forward
Operate
mechanism
3.7
Seat linkages
Examine
Note . . .
Item 3.8 is applicable to pre Mod. 02198 installations only.
3.8
Ejection gun
sear withdrawal (i) Rotate the sear withdrawal cross-shaft
safety lock
and linkage forward and engage the
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 7 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
mechanism
locking plunger fully into the recess in
the shackle plunger housing
(ii) Attempt to rotate the seat firing cross
shaft anti-clockwise by applying light
hand pressure to the sear withdrawal
lever assembly. If rotation is not possible
and the ejection gun sear withdrawal
safety lock is engaged, continue with
Item (iii). If rotation is possible and the
ejection gun sear withdrawal safety lock
is not engaged, the seat is to be
returned to the seat bay for maintenance
(iii) Disengage the sear withdrawal safety
lock and rotate the seat firing cross shaft
to facilitate the fitting of the time delay
firing unit
WARNING . . .
DURING Item 3.9, LUBRICATION OF THE COMMAND FIRING CONNECTOR BALL BEARINGS IS
CARRIED OUT BY USING GREASE (XG-293). REFER TO THE OILS AND LUBRICANTS WARNING
IN THE PRELIMINARY PAGES OF THIS PUBLICATION.
3.9
Command firing
connector ball
(i) Examine
bearing (3 off)
(ii) Ensure lubricated with grease (XG-293)
(end of work block)
WEAPONS
4.
EJECTION GUN
4.1
Command
ejection quick-
(i) Remove blank
disconnect
(ii) Examine
(iii) Ensure freedom of movement of spring
components
4.2
Time delay
Ensure removed
firing unit
4.3
Inner piston
(i)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 8 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
The 'V' shaped grooves, for locating
upper cross member dowel pin, are
aligned with the centre of the ejection
gun guide rails (Fig. 1)
(ii) The centre of the breech groove is
aligned with the centre of the top latch
window (Fig. 1)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 9 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 1. Correct alignment of the inner piston V shaped grooves, inner piston breech groove and the outer
cylinder top latch window (pre and post Mod.02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 10 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
WEAPONS
5.
EJECTION SEAT INSTALLATION
Note . . .
Item 5.1 through 5.4 inclusive are applicable only if one ejection seat is already installed or if the canopy
jettison or MDC systems are armed.
5.1
Ejection seat
Ensure a safety pin is fully inserted in seat
pan firing handle
5.2
Canopy jettison Ensure a safety pin is fitted in canopy jettison
system
initiator unit
5.3
Miniature
Ensure a safety pin is fitted in each MDC
detonating cord cord initiator unit
(MDC) system
5.4
Command
Ensure set to REAR
ejection
controller
5.5
Cockpit
Look for loose articles
5.6
MDC trip rod
Examine MDC cross-shaft trip rod lever
(P721143-001) for signs of cracking using a
suitable light source, mirror and x10 magnifier
5.7
Leg and arm
Examine
restraint floor
anchorage
brackets
5.8
PEC static line
Examine
anchorage
bracket
5.9
Seat stabilizing Examine
brackets
5.10
Head spray
Examine
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 11 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
connections
5.11
PEC
(a) Aircraft
Remove protective cover
portion
(b) Supply
Examine
hoses
(c) MIC/TEL
Examine
lead
(d) Static line
Examine
(e) Oxygen
Operate and ensure freedom of movement
valve
(f) Static line
Ensure connected to floor anchorage
Ensure routed correctly (AP 101b-
4104-1el Chap.25-11)
Ensure QRP is correctly locked (lock
lever at nominal 90 degrees to axis of
pin and anodised lock button
protruding)
Without touching anodised lock
button, take up free play in lock lever
and attempt to withdraw pin. The pin
must be securely retained
CAUTION . . .
To prevent the possibility of damaging the front face of the top latch window housing it is
essential that the handwheel is fully screwed in.
5.12
Ejection seat
(i) Fit the lifting sling
(ii) Ensure the handwheel is screwed in fully
(iii) Raise to position above the guide rails
(end of work block)
WEAPONS NCO
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 12 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
5A.
VITAL CHECK
5A.1
Handwheel
Ensure fully screwed in
(end of work block)
WEAPONS
5B.
EJECTION SEAT INSTALLATION
CAUTIONS . . .
(1) To prevent damage to the seat pan actuator/IFF socket connector (2MG front seat, 4MG rear
seat) pull-off lanyard, ensure it will not be trapped when the ejection seat is lowered into
position.
(2) During lowering of the seat, ensure the dowel pin, on the right inside face of the main beam
upper cross member, locates in the 'V' shaped groove of the inner piston of the ejection gun.
5B.1
Lower slippers
Engage in the guide rails and lower seat,
engaging each set of slippers in turn
5B.2
Ejection gun
Ensure protruding through the upper cross
inner piston
member and that the dowel pin on the right
inside face of the upper cross member is
located in the V shaped groove of the inner
piston (Fig. 2 and Fig. 2A)
5B.3
Handwheel
Remove from the top latch plunger
WARNING . . .
FAILURE TO ENSURE CORRECT ENGAGEMENT OF THE TOP LATCH PLUNGER COULD, DURING
CERTAIN MANOEUVRES, RESULT IN THE SEAT AND OCCUPANT MOVING UP THE GUIDE RAILS
WITH POSSIBLE FATAL RESULTS.
5B.4
Top latch
(i) Ensure the indicator spigot is flush with,
or slightly protruding from the face of the
top latch plunger
(ii) Ensure the top latch plunger is flush
with, or slightly below, the plunger
housing face (Fig. 3, Fig. 3A, Fig. 4 and
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 13 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 5)
5B.5
Deleted
5B.6
Lifting sling
Remove
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 14 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 2. Correct protrusion of the inner piston through the upper cross member and the correct location of the
dowel pin in the V shaped groove (pre Mod. 02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 15 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 2A. Correct protrusion of the inner piston through the upper cross member and the correct location of
the dowel pin in the V shaped groove (post Mod. 02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 16 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 3. Correct engagement of the top latch (pre Mod.02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 17 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fig. 3A. Correct engagement of the top latch (post Mod.02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 18 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
NATO RESTRICTED
TOP LATCH PLUNGER IS FLUSH
WITH, OR SLIGHTLY BELOW, THE
PLUNGER HOUSING FACE.
Fig. 4. Correct engagement of the top latch-plunger view (pre and post Mod.02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 19 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
NATO RESTRICTED
INDICATOR SPIGOT IS FLUSH WITH,
OR SLIGHTLY PROTRUDING FROM
THE FACE OF TOP LATCH PLUNGER.
Fig. 5. Correct engagement of the top latch-spigot view (pre and post Mod.02198 Part B)
(New il ustration)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 20 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
WEAPONS NCO
6.
VITAL CHECKS
WARNING . . .
FAILURE TO ENSURE CORRECT ENGAGEMENT OF THE TOP LATCH PLUNGER COULD, DURING
CERTAIN MANOEUVRES, RESULT IN THE SEAT AND OCCUPANT MOVING UP THE GUIDE RAILS
WITH POSSIBLE FATAL RESULTS.
6.1
Top latch
(i) Ensure the indicator spigot is flush with,
or slightly protruding from the face of the
top latch plunger
(ii) Ensure the top latch plunger is flush
with, or slightly below, the plunger
housing face (Fig. 3, Fig. 3A, Fig. 4 and
Fig. 5)
6.2
Ejection gun
Ensure protruding through the upper cross
inner piston
member and the dowel pin on the right inside
face of the upper cross member is located in
the V shaped groove of the inner piston (Fig.
2 and Fig. 2A)
(end of work block)
WEAPONS
7.
SEAT STRUCTURE CONNECTION
7.1
Drogue gun trip
rod
(i) Examine
(ii) Reconnect to the trip rod attachment
bracket
(iii) Check orientation of connections:
yellow pin head, white anchorage
lug
yellow trip rod, white anchorage
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 21 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
lug
(iv) Ensure positive locking of the security
pin by attempting to withdraw the pin
without depressing the plunger
7.2
Barostatic time-
release unit trip (i) Examine
rod
(ii) Reconnect to the trip rod attachment
bracket rear anchorage point
(iii) Check orientation of connections:
yellow pin head, white anchorage
lug
yellow trip rod, white anchorage
lug
(iv) Ensure positive locking of the security
pin by attempting to withdraw the pin
without depressing the plunger
CAUTION . . .
The MDC trip rod is assembled with a shear pin which is designed to fail just after the MDC has
been fired. The condition of this shear pin is critical to the correct functioning of the escape
system and, because of this, the trip rod must be replaced at the slightest suspicion of damage.
7.3
MDC trip rod
(i) Check the roller for freedom of
movement by rotating the roller slowly
under finger pressure
(ii) Reconnect to the cross-shaft
(iii) Ensure the roller is just touching the
tongue of the lever attached to the
cockpit cross-shaft
7.4
Aircraft
Ensure electrically safe (Check circuit-
breakers 122 and 165 tripped)
Note . . .
When carrying out Item 7.5, socket connector 2MG/4MG is correctly connected when a contrasting colour
stripe under the coupling ring is visible. The contrasting colour stripe is only visible when the fully mated
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 22 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
condition is achieved.
7.5
Seat pan
Remove from its stowage, examine and
actuator/IFF
reconnect to the mating plug connector
socket
connector
(2MG front
seat, 4MG rear
seat)
7.6
PEC aircraft
Reconnect to seat portion
portion
7.7
Arm and leg
restraint lines
(i) Remove QRP from leg restraint line
securing brackets
(ii) Reconnect to floor anchorage. Ensure
QRP is correctly locked (lock lever at
nominal 90 degrees to axis of pin and
anodised lock button is protruding).
Without touching the anodised lock
button, take up free play in lock lever
and attempt to withdraw pin. The pin
must be securely retained
(iii) Ensure arm restraint line is secured to
floor anchorage with long side of link
uppermost and point facing forward
(iv) Ensure roller is positioned to rear of floor
anchorage
(v) Ensure link rotates freely to a vertical
position when arm restraint system is
manually tensioned
(end of work block)
WEAPONS
8.
BAROSTATIC TIME-RELEASE UNIT
8.1
Breech
Remove from firing body
8.2
Cartridge
(i) Ensure the correct modification state for
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 23 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
the seat being installed
(ii) Insert into breech
8.3
Firing body
Ensure the firing pin is not protruding
8.4
Breech
(i) Insert into firing body
(ii) Torque tighten to 28 N.m
(iii) Lock with wire
(end of work block)
WEAPONS
9.
EJECTION GUN
WARNING . . .
DURING Item 9.1, LUBRICATION OF THE PRIMARY CARTRIDGE O-SEAL IS CARRIED OUT BY
USING GREASE (XG-293). REFER TO THE OILS AND LUBRICANTS WARNING IN THE
PRELIMINARY PAGES OF THIS PUBLICATION.
9.1
Primary
cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Fit new O-seal lubricated with grease
(XG-293)
(iii) Insert into breech
Note . . .
It should be noted that the foil identification labels referred to in the following caution were removed under
log modification 4326 and replaced with the details engraved onto the BTDFU. However some BTDFUs
with foil identification labels may still remain in circulation.
CAUTIONS . . .
(1) During Item 9.2, care must be taken during the fitment of the time-delay firing unit to ensure
the foil identification label is not damaged by the breech dowel pins, causing pieces of the
label to fall onto the primary cartridge. Damaged labels must be replaced.
(2) Post Mod.02198 Part B; When the final torque tightening load is applied to the BTDFU, ensure
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 24 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
the gas adaptor on top of the BTDFU is positioned such that it does not foul against the
ejection seat upper cross member/gas shackle.
9.2
Time delay
firing unit
(i) Ensure the firing pin is not protruding
(ii) Insert into breech past the dowel pins
(iii) Pre Mod.02198 Part B - tighten; Post
Mod.02198 Part B - torque load to 28
N.m
(iv) Lock with wire
Note . . .
Item 9.3 is applicable to pre Mod. 02198 installations only.
9.3
Sear withdrawal
cross-shaft and (i) Rotate forward and engage locking
linkage
plunger fully into recess in shackle
plunger housing
(ii) Attempt to rotate seat firing cross shaft
anti-clockwise by applying light hand
pressure to sear withdrawal lever
assembly. If rotation
is not possible and
ejection gun sear withdrawal safety lock
is engaged, continue with operation (iii).
If rotation
is possible and ejection gun
safety lock
is not engaged, the seat is
to be removed and returned to seat bay
for maintenance
(iii) Connect linkage to sear using nut and
bolt
Note . . .
Item 9.4 is applicable to post Mod. 02198 installations only.
9.4
Time-delay
firing unit gas
(i) Remove pins
supply flexible
hose
(ii) Connect to the gas adaptor on top of the
time-delay firing unit
(iii)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 25 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Fit the quick-release pins (2 off) to
secure the hose to the time-delay firing
unit. Ensure the ends of the quick
release pins (2 off) are not in contact
with the castellations of the BTDFU
(iv) Without depressing the release plunger,
ensure the quick release pins are
correctly locked and free to move
(v) If any of the above criteria cannot be
met, remove the quick release pins (2
off) and disconnect the gas pipe from
the BTDFU
(vi) Holding the gas pipe (MBEU 116671)
rotate the connecting block (MBEU
111476) on the pipe to ease the
repositioning of the quick release pins
(vii) Refit the gas pipe to the BTDFU, refit
the quick release pins (2 off) and repeat
the checks at 9.4 (iii) and (iv)
(end of work block)
WEAPONS
10.
DROGUE GUN
10.1
Barrel
Inspect water seal and replace if necessary
WARNING . . .
DURING Item 10.2, LUBRICATION OF THE PRIMARY CARTRIDGE O-SEAL IS CARRIED OUT BY
USING GREASE (XG-293). REFER TO THE OILS AND LUBRICANTS WARNING IN THE
PRELIMINARY PAGES OF THIS PUBLICATION.
10.2
Primary
cartridge
(i) Ensure the correct modification state for
the seat being installed
(ii) Fit new O-seal lubricated with grease
(XG-293)
(iii) Insert into the barrel
10.3
Firing body
Ensure the firing pin is not protruding
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 26 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
Note . . .
Item 10.4 is applicable only if the water seal has been replaced
10.4
Barrel
(i) Remove shear pin
(ii) Screw into body
(iii) Torque tighten to 18 N.m
(iv) Turn piston inside barrel so that piston
fork end groove faces fore and aft as
near as possible . Align hole in piston
with nearest shear pin hole in barrel.
Unscrew the barrel sufficiently to allow
fitment of special shear pin
(v) Fit special shear pin with head inboard,
splay pin legs to lock pin
(vi) Torque tighten to 18 N.m and lock with
wire
10.5
Barrel
(i) Screw into body
(ii) Torque tighten to 18 N.m and lock with
wire
(end of work block)
WEAPONS
11.
SURVIVAL EQUIPMENT - INSTALLATION
11.1
Drogue
withdrawal line
(i) Reconnect to the drogue gun piston
(ii) Lock the bolt with wire
11.2
Harness
Leave ready for occupant
(end of work block)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 27 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
WEAPONS
12.
PROCEDURE
12.1
Headspray
Reconnect
connections
12.2
Command
Reconnect to sequencing manifold ensuring
ejection quick-
red line on sequencing manifold is not visible
disconnect
when viewed from the horizontal
(end of work block)
WEAPONS NCO
13.
VITAL CHECKS
13.1
Ejection seats
Ensure the safety pin is fully inserted in each
seat pan firing handle
13.2
Canopy jettison Ensure the safety pin is fitted in the canopy
system
jettison initiator unit
13.3
MDC
Ensure a safety pin is fitted in each MDC
initiator unit
13.4
Command
Ensure set to REAR
ejection
controller
(end of work block)
ELECTRICAL
14.
EXTERNAL POWER SUPPLY
14.1
External a.c.
Connect and switch ON (AP 101B-4104-1HA
power supply
Chap.55-40)
14.2
Circuit-breaker
Set (AP 101B-4104-1HA Chap.55-50)
122
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 28 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
WEAPONS NCO
15.
VITAL CHECKS
CAUTION . . .
Prolonged operation of the motor will cause overheating; the seat pan actuator must not be
operated for more than 1 min in 8 min.
15.1
Seat pan
Operate over the complete range, ensuring
actuator
the aircraft portion PEC remains connected
with the seat pan in the highest position
(end of work block)
ELECTRICAL
16.
EXTERNAL POWER SUPPLY
16.1
External a.c.
Switch OFF (AP 101B-4104-1HA Chap.55-
power supply
40)
(end of work block)
WEAPONS NCO
17.
VITAL CHECKS
17.1
BTRU
(a) Firing unit
Ensure refitted correctly and locked with wire
(b) Trip rod
(i) Ensure reconnected to cross-beam rear
anchorage point with trip rod (yellow)
located between attachment bracket
lugs (white) and securing pin (yellow
head) positively located through
attachment bracket and trip rod
(ii) Ensure positive locking of the securing
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 29 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
pin by attempting to withdraw the pin
without depressing the plunger
17.2
Ejection gun
time-delay firing
unit
(a) Unit
Ensure refitted correctly and locked with wire
Note . . .
Item 17.2 (b) is applicable to pre Mod. 02198 installations only.
(b) Sear
withdrawal
(i) Ensure linkage is correctly connected to
cross-shaft and
sear
linkage
(ii) Ensure locking plunger is fully engaged
in recess in shackle plunger housing
Note . . .
Item 17.3 is applicable to post Mod. 02198 installations only.
17.3
Time-delay
firing unit gas
(i) Ensure connected correctly. Ensure the
supply flexible
ends of the quick release pins (2 off) are
hose
not in contact with the castellations of
the BTDFU
(ii) Without depressing the release plunger,
ensure the quick release pins are
correctly locked and free to move
17.4
Drogue gun
(a) Piston
Ensure piston fork-end groove faces fore and
aft as near as possible
(b) Special
Ensure fitted head inboard and ends splayed
shear pin
(c) Barrel
Ensure refitted correctly and locked with wire
(d) Trip rod
(i) Ensure reconnected to cross beam
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 30 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
anchorage point with trip rod (yellow)
located between attachment bracket
lugs (white) and securing pin (yellow
head) positively located through
attachment bracket and trip rod
(ii) Ensure positive locking of the securing
pin by attempting to withdraw the pin
without depressing the plunger
(iii) Ensure remote rocket initiator static line
has been reconnected
17.5
MDC trip rod
(i) Ensure connected correctly
(ii) Check the roller for freedom of
movement by rotating the roller slowly
under finger pressure
(iii) Ensure roller is just touching tongue of
lever attached to cockpit cross-shaft
17.6
PEC
(a) Aircraft
Ensure connected correctly
portion
(b) Static line
Ensure connected and routed correctly to
floor anchorage brackets. Ensure QRP is
correctly locked (lock lever at nominal 90
degrees to axis of pin and anodised button is
protruding). Without touching the anodised
lock button, take up free play in lock lever
and attempt to withdraw pin, the pin must be
securely retained
17.7
Leg and arm
restraint lines
(i) Ensure connected and routed correctly
to floor anchorage brackets. Ensure
QRP is correctly locked (lock lever at
nominal 90 degrees to axis of pin and
anodised button is protruding). Without
touching the anodised lock button, take
up free play in lock lever and attempt to
withdraw pin, the pin must be securely
retained
(ii) Ensure arm restraint line is secured to
floor anchorage with long side of link
uppermost and point facing forward
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 31 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(iii) Ensure roller is positioned to rear of floor
anchorage
(iv) Ensure link rotates freely to a vertical
position when arm restraint system is
manually tensioned
Note . . .
When carrying out Item 17.8, socket connector 2MG/4MG is correctly connected when a contrasting
colour stripe under the coupling ring is visible. The contrasting colour stripe is only visible when the fully
mated condition is achieved.
17.8
Seat pan
Ensure correctly reconnected to its mating
actuator/IFF
plug connector
socket
connector
(2MG front
seat, 4MG rear
seat)
17.9
Command
ejection quick-
(i) Ensure connected to seat manifold
disconnect
(ii) Ensure red line on seat manifold is not
visible when viewed from the horizontal
(iii) Ensure static line is connected to cross-
beam forward anchorage point. Ensure
positive locking of the securing pin by
attempting to withdraw the pin without
depressing the plunger
17.10
Drogue
withdrawal line
(i) Ensure routed correctly
(ii) Ensure connected to the drogue gun
piston
17.11
Headspray
Ensure connected correctly
connections
17.12
Maintenance
Enter as follows:
documentation
Certified vital checks satisfactorily
completed
(end of work block)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 32 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
AIRFRAME
18.
PEC SEAT PORTION
18.1
Main oxygen
Carry out (AP 101b-4104-1el MP 25-11/1)
system
functional test
(end of work block)
AVIONIC
19.
PEC SEAT PORTION
19.1
MIC/TEL
Carry out an inter-cockpit check (AP 101B-
system pre
4104-1JA MP 60-40/1)
Mod. 02500
19.1A
MIC/TEL
Carry out an inter-cockpit check (AP 101B-
system post
4104-1JA MP 60-40A/1)
Mod. 02500
(end of work block)
AVIONIC
Note . . .
Block 20 is applicable only to pre Mod. 02383 aircraft.
20.
PREPARATION - IFF INTEGRITY TEST
Note . . .
Item 20.1 is applicable only to aircraft fitted with the Mk.10 IFF system.
20.1
Transponder:
(a) MASTER
Ensure set to OFF
switch
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 33 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(b) MODE 1
Set to 0000
code selectors
(c) MIL/CIV
Set to MIL
switch
Note . . .
Item 20.2 is applicable only to aircraft fitted with the Mk.12 IFF system.
20.2
Transponder:
(a) MASTER
Ensure set to OFF
switch
(b) M-1/OUT
Set to M-1
switch
(c) M-2/OUT
Set to M-2
switch
(d) M-3A/OUT
Set to M-3A
switch
(e) M-C/OUT
Set to M-C
switch
(f) MODE 1
Set to 00
code selectors
(g) MODE 3A
Set to 0000
code selectors
20.3
IFF-701 test set Carry out self test as follows:
(a) POWER key Press
(b) SELF TEST Press to enter the self test screen
key
(c) ANTENNA
Terminate with 50 ohm connector
connector
(d) RUN/STOP
Press to initiate self test and ensure when
key
completed, the GREEN LED is illuminated
and check the display to verify that all
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 34 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
modules have passed
Note . . .
Item 20.4 through Item 20.6 are applicable only to aircraft fitted with the Mk.10 IFF system.
20.4
Radome
Open and secure (AP 101B-4104-1EA2
assembly and
Chap.15-11)
radar skirt
20.5
Antenna
Disconnect the lower antenna connector
switching unit
from the antenna switching unit LOWER SK-
B
20.6
IFF-701 test set Connect to the test set RF I/O socket and the
coax cable
antenna switching unit lower antenna socket
LOWER SK-B
20.7
IFF-701 test set Press to display the 1st line test screen (will
AUTO TEST
show the results of the last AUTO TEST on
key
the display)
Note . . .
Item 20.8 is applicable only to aircraft fitted with the Mk.10 IFF system.
20.8
IFF-701 test set Select the required configuration as
SLEW key
MK10+LOB
Note . . .
Item 20.9 is applicable only to aircraft fitted with the Mk.12 IFF system
20.9
IFF-701 test set Select the required configuration as MK12-
SLEW key
M4
(end of work block)
ELECTRICAL
Note . . .
Block 21 is applicable only to pre Mod. 02383 aircraft.
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 35 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
21.
PREPARATION
21.1
Circuit-breaker
Ensure set (AP 101B-4104-1HA Chap.55-50)
165
21.2
External a.c.
Connect and switch ON (AP 101B-4104-1HA
power supply
Chap.55-40)
(end of work block)
AVIONIC
Note . . .
Block 22 is applicable only to aircraft fitted with the Mk.10 IFF system.
22.
PROCEDURE
22.1
Antenna test
Set to LOWER
switch (nose
landing gear
compartment)
22.2
Transponder:
(a) MASTER
switch
(i) Set to SBY and allow 2 min warm-up
period
(ii) Set to N
(b) TEST lamp
Press and ensure lit
(c) TEST switch Press and ensure the TEST lamp is lit
22.3
IFF-701 test set Select the MODE 1,2 REPLY TEST
SEL key
22.4
IFF-701 test set Ensure the MODE 1 code reply is not
MODE 1,2
preceded by the letters EM
REPLY TEST
screen
22.5
Circuit-breaker
Trip (AP 101B-4104-1HA Chap.55-50)
170
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 36 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
22.6
IFF-701 test set Ensure the MODE 1 code reply is preceded
MODE 1,2
by the letters EM
REPLY TEST
screen
22.7
Circuit-breaker
Set (AP 101B-4104-1HA Chap.55-50)
170
22.8
IFF-701 test set Ensure the MODE 1 code reply is not
MODE 1,2
preceded by the letters EM
REPLY TEST
screen
22.9
IFF-701 test set Press to end MODE 1,2 REPLY TEST
RUN/STOP key
22.10
IFF-701 test set Press to power down test set
POWER key
22.11
Transponder
Set to OFF
MASTER switch
22.12
IFF-701 test set Disconnect from the test set antenna socket
coax cable
and the antenna switching unit lower
antenna socket (23 SKB)
22.13
Antenna
Reconnect the lower antenna to socket 23
switching unit
SKB
22.14
Radome
Close (AP 101B-4104-1EA2 Chap.15-11)
assembly and
radar skirt
22.15
Antenna test
Set to FLIGHT
switch
(end of work block)
AVIONIC
Note . . .
Block 23 is applicable only to aircraft fitted with the Mk.12 IFF system.
23.
PROCEDURE
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 37 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
23.1
Transponder:
(a) MASTER
switch
(i) Set to SBY and allow 3 min warm-up
period
(ii) Set to N
(b) TEST push
Press and ensure the FAULT indicator is not
button
white
23.2
IFF-701 test set Press to select MODE 1, 2 REPLY TEST
SEL key
23.3
IFF-701 test set Press to initiate MODE 1, 2 REPLY TEST
RUN/STOP key and ensure MODE 1 code reading is correct
23.4
Circuit-breaker
Trip (AP 101B-4104-1HA Chap.55-50)
170
23.5
Radome
Open (AP 101B-4104-1EA2 Chap.15-11)
assembly and
radar maxi skirt
23.6
Connectors
Locate (zone 12) and disconnect, fit 50
Ω
23SKB and
termination lead to 23SKC
23SKC
23.7
IFF-701 test set Connect coaxial cable between test set
ANTENNA connector and 23SKb (stowage
point)
23.8
Transponder
Set to STBY
MASTER switch
23.9
Circuit-breaker
Set (AP 101B-4104-1HA Chap.55-50)
170
23.10
IFF-701 test set Press and ensure the MODE 1 code reply is
RUN/STOP key suffixed by the letters EM
23.11
IFF-701 test set Press to end MODE 1, 2 REPLY TEST
RUN/STOP key
23.12
IFF-701 test set Disconnect coaxial cable between test set
ANTENNA connector and 23SKb
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 38 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
23.13
Connector
Remove the 50
Ω termination and reconnect
23SKC
to to 23SKc at the aircraft stowage point
23.14
Connectors
Reconnect to 23SKb at the aircraft stowage
23SKB
point
23.15
Radome
Close (AP 101B-4104-1EA2 Chap.15-11)
assembly and
radar maxi skirt
23.16
IFF-701 test set Press to power down test set
POWER key
23.17
Transponder
Set to 'OFF'
MASTER switch
(end of work block)
ELECTRICAL
Note . . .
Block 24 is applicable only to pre Mod. 02383 aircraft.
24.
COMPLETION
24.1
External a.c.
Switch OFF and disconnect (AP 101B-4104-
power supply
1HA Chap.55-40)
(end of work block)
AVIONIC
Note . . .
Block 25 is applicable only to post Mod. 02383 aircraft.
25.
PREPARATION - SUCCESSOR IDENTIFICATION FRIEND OR FOE (SIFF) INTEGRITY TEST
25.1
IFF
Set to 'ENABLE'
inhibit/enable
switch
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 39 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
25.2
Access door
Open and secure (AP 101B-4104-1CD MP
R124
07-40/1)
25.3
Transponder
control and
display unit
(TCDU):
(a) Mode
Set to OUT position
enable switches
M1, M2, M3/A,
MC, MS and M5
(b) MASTER
Ensure in the PULL OFF position
switch
25.4
RAPID TAKE
Set to FLIGHT
OFF panel
IGNITION
switch
25.5
IFF-701 test set Carry out self test as follows:
(a) POWER key Press
(b) SELF TEST Press to enter the self test screen
key
(c) ANTENNA
Terminate with 50 ohm connector
connector
(d) RUN/STOP
Press to initiate self test and ensure when
key
completed, the GREEN LED is illuminated
and check the display to verify that all
modules have passed
(end of work block)
ELECTRICAL
Note . . .
Block 26 is applicable only to post Mod. 02383 aircraft.
26.
PREPARATION
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 40 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
26.1
Circuit-breaker
Ensure tripped (AP 101B-4104-1HA Chap.55-
325
50)
26.2
Circuit-breaker
Ensure set (AP 101B-4104-1HA Chap.55-50)
3, 165, 170 and
355
26.3
External a.c.
Connect and switch ON (AP 101B-4104-1HA
power supply
Chap.55-40)
(end of work block)
AVIONIC
Note . . .
Block 27 is applicable only to post Mod. 02383 aircraft.
27.
PROCEDURE
27.1
Transponder
Disconnect aerial connectors 48SKD (J2)
and 48SKE (J3)
CAUTION . . .
To prevent damage to IFF-701 test set, do not connect the transponder to the ANTENNA
connector when set for direct connect.
27.2
IFF-701 test set Connect the direct connect cable from RF
I/O socket directly to J3 on the transponder
27.3
50
Ω dummy
Connect to J2 on the transponder
load
27.4
IFF-701 test set Press to display the 1st line test screen (will
AUTO TEST
show the results of the last AUTO TEST on
key
the display)
27.5
IFF-701 test set Set the required configuration as MK12S-M4
SLEW key
27.6
TCDU:
(a) MASTER
Set to STBY
switch
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 41 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(b)
Ensure SELF TEST displayed, followed by
Alphanumeric
TEST PASS displayed for 5s on completion
displays
of PBIT
(c) MASTER
Set to NORM
switch
(d) MODE 1
Set to 7300
CODE
(e) MODE 2
Take note of the preset MODE 2 code, then
CODE
set it to 7777
27.7
Circuit-breaker
Trip (AP 101B-4104-1HA Chap.55-50)
170
27.8
TCDU:
Alphanumeric
Ensure EMER EMER displayed
display
27.9
IFF-701 test set Select MODE 1, 2 REPLY TEST
SEL key
27.10
IFF-701 test set Press and ensure MODE 1 code of 7300 EM
RUN/STOP key and MODE 2 code of 7777 EM displayed
27.11
IFF-701 test set Select ATCRBS REPLY TEST
SEL key
27.12
IFF-701 test set Press and ensure MODE 3/A code of 7700
RUN/STOP key EM displayed
27.13
Circuit-breaker
Set (AP 101B-4104-1HA Chap.55-50)
170
27.14
TCDU:
(a)
Ensure EMER EMER no longer displayed
Alphanumeric
display
(b) MODE 2
Reset MODE 2 code to that noted at Step
CODE
26.6(e)
(c) MASTER
Set to PULL OFF position
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 42 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
switch
27.15
IFF-701 test set Press to power down test set
POWER key
27.16
IFF-701 test set Disconnect direct connect cable from RF I/O
socket
27.17
Transponder
(i) Disconnect direct cable from J3
(ii) Disconnect 50
Ω dummy load from J2
(iii) Connect aerial connectors 48SKD (J2)
and 48SKE (J3)
(end of work block)
AVIONIC
Note . . .
Block 28 is applicable only to post Mod. 02383 aircraft.
28.
COMPLETION
28.1
RAPID TAKE
Set to OFF
OFF panel
IGNITION
Switch
28.2
External a.c.
Switch OFF and disconnect (AP 101B-4104-
power supply
1HA Chap.55-40)
28.3
Access door
Close and secure (AP 101B-4104-1CD MP
R127
07-40/1)
(end of work block)
WEAPONS SNCO
29.
INDEPENDENT CHECKS
29.1
Seat installation Carry out independent checks (MP 29-10/6)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 43 of 44
Non-configured print - valid only on: 22/01/2019
DAP 101B-4104-1EP
'HAZARD AND MAINTENANCE INFORMATION' (AP 101B-4104-5A2) is to be complied with throughout the
work detailed on this card
(end of work block)
AIRFRAME
30.
COMPLETION
30.1
Canopy
Fit (AP 101B-4104-1EA2 MP 15-13/2)
(end of work block)
WEAPONS
31.
MAINTENANCE DOCUMENTATION
31.1
Maintenance
Complete
documentation
(end of work block)
(END OF MP)
MP 29-10/3A MARCH 11
MARCH 2011
NATO RESTRICTED
Page 44 of 44