W DOC AIRBUS | AMM A320F

Removal of the Forward Apron Assembly

TASK 54-57-22-000-822-A
Removal of the Forward Apron Assembly

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:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
ZONE: 410
ZONE: 420
1. Reason for the Job
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
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
410
ENG 1 PYLON BOX AND FORWARD FAIRING
420
ENG 2 PYLON BOX AND FORWARD FAIRING
413AL, 413AR, 423AL, 423AR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 54-52-11-000-002-A
Removal of the Access Panels
TASK 54-52-11-000-002-B
Removal of the Access Panels
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B
Opening of the Fan Cowl Doors
TASK 71-51-43-000-001-A
Removal of the Left Side Harness
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B
Make the Thrust Reverser Unserviceable for Maintenance
F Forward Apron Assembly
3. Job Set-up
Subtask 54-57-22-941-104-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Put a WARNING NOTICE(S) in position to tell persons not to start engine 1(2).
   (2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
   (3) On overhead maintenance panel 50VU:
     (a) Make sure that the ENG/FADEC GND PWR/1(2) pushbutton switch is released (the ON legend is off).
     (b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 54-57-22-040-094-A ** ON A/C NOT FOR ALL
B. Deactivation of the Thrust Reverser
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 78-30-00-481-041).
Subtask 54-57-22-010-093-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position:
     (a) For the left pylon, in zone 415.
     (b) For the right pylon, in zone 425.
   (2) Remove the access panels (Ref. AMM TASK 54-52-11-000-002).
     (a) For the left pylon : 413AL and 413AR.
     (b) For the right pylon : 423AL and 423AR.
   (3) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040).
   (4) Disconnect the electrical connectors (Ref. AMM TASK 71-51-43-000-001).
   (5) Remove the bolts (2) and lift the plate (3) carefully.
   (6) If necessary, remove the clamps (4) to release the electrical harness.
4. Procedure
Subtask 54-57-22-020-086-A ** ON A/C NOT FOR ALL
A. Removal of the Forward Apron Assembly
   (1) Remove the screws (5).
   (2) Remove the screws (6) and the nuts (7).
   (3) Remove the bolts (8) and the nuts (7).
   (4) Remove the bolts (8) and the washers (9).
   (5) Remove carrefully the forward apron assembly (1).
   (6) If necessary, loosen the bolts (10) and the nuts (11).
[Rev.10 from 2021] 2026.04.01 02:04:04 UTC
"Aviabrain" 2025