W DOC AIRBUS | AMM A320F

Replacement of the Cantilever Cover Assemblies

TASK 54-52-12-300-001-A
Replacement of the Cantilever Cover Assemblies

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.
WARNING: BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
ZONE: 411
ZONE: 421
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 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
98D27803500001
1
LOCKING TOOL ZERO POS
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
411
PYLON LEADING EDGE
421
PYLON LEADING EDGE
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 27-80-00-866-005-A
Retracting the Slats on the Ground
TASK 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
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 Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 54-52-12-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on the ENG panel 115VU:
     (a) Put the WARNING NOTICE(S) to tell persons not to start the engine.
   (2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
   (3) On the overhead maintenance panel 50VU:
     (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put the WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
   (4) Make sure that the slats are in the fully retracted position (Ref. AMM TASK 27-80-00-866-005).
   (5) Install the LOCKING TOOL - SLAT CONTROL LEVER (98D27803500000) or 98D27803500001 LOCKING TOOL ZERO POS on the slat control lever.
Subtask 54-52-12-040-050-A ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).
Subtask 54-52-12-040-050-B ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-040-012).
Subtask 54-52-12-040-050-C ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).
Subtask 54-52-12-010-050-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position:
     (a) At zone 410 for the left pylon,
     (b) At zone 420 for the right pylon.
4. Procedure
Subtask 54-52-12-010-051-A ** ON A/C NOT FOR ALL
A. Removal of the Cantilever Cover
F Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
   (1) Remove the bolts (1).
   (2) Remove the screws (3) and the nuts (4).
   (3) Remove the cantilever cover (2).
   (4) Remove the shims (5).
   (5) Remove the plates (6).
Subtask 54-52-12-410-050-A ** ON A/C NOT FOR ALL
B. Installation of the Cantilever Cover
F Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
F Cantilever Cover ** ON A/C NOT FOR ALL
   (1) Install the plates (6).
   (2) Install the shims (5).
   (3) Install the cantilever cover (2).
   (4) Install the screws (3) and the nuts (4).
   (5) Install the bolts (1).
Subtask 54-52-12-010-051-F ** ON A/C NOT FOR ALL
C. Removal of the Cantilever Cover
F Cantilever Cover ** ON A/C NOT FOR ALL
   (1) Remove the bolts (1).
   (2) Remove the nuts (3).
   (3) Remove the cantilever cover (2).
Subtask 54-52-12-410-050-F ** ON A/C NOT FOR ALL
D. Installation of the Cantilever Cover
F Cantilever Cover ** ON A/C NOT FOR ALL
   (1) Install the cantilever cover (2).
   (2) Install the bolts (1) and the nuts (3).
5. Close-up
Subtask 54-52-12-040-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
Subtask 54-52-12-040-051-B ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-440-012).
Subtask 54-52-12-040-051-C ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
Subtask 54-52-12-410-051-A ** ON A/C NOT FOR ALL
B. Put the aircraft back to its initial configuration.
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 02:02:09 UTC
"Aviabrain" 2025