Removal of the Rear Mount-Fairing Block Fire-Seal
TASK 54-57-22-000-820-A
Removal of the Rear Mount-Fairing Block Fire-Seal
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 54-57-22-941-099-A ** ON A/C NOT FOR ALL
Subtask 54-57-22-020-084-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:49:34 UTC
Removal of the Rear Mount-Fairing Block Fire-Seal
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 410 | ENG 1 PYLON BOX AND FORWARD FAIRING |
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 54-56-11-010-801-A | Opening of the Rear Mount Fairing (RMF) Door |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
Subtask 54-57-22-941-099-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
Subtask 54-57-22-040-087-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
B. Deactivation of the Thrust Reverser
Subtask 54-57-22-010-081-A ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-805). C. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(2) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(3) Open the rear mount-fairing doors (Ref. AMM TASK 54-56-11-010-801).
(4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, at zone 415
(b) For the right pylon, at zone 425.
4. Procedure(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(2) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(3) Open the rear mount-fairing doors (Ref. AMM TASK 54-56-11-010-801).
(4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
(a) For the left pylon, at zone 415
(b) For the right pylon, at zone 425.
Subtask 54-57-22-020-084-A ** ON A/C NOT FOR ALL
A. Removal of the Rear Mount-Fairing Block Fire-Seal
(1) Remove the nuts (1).
(2) Remove the bracket (2).
(3) Remove the rear mount-fairing block fire-seal (3).
(1) Remove the nuts (1).
(2) Remove the bracket (2).
(3) Remove the rear mount-fairing block fire-seal (3).
Rear Mount-Fairing Block Fire-Seal