W DOC AIRBUS | AMM A320F

To Make the Landing Gear and the Doors Safe after a Free-Fall Extension


TASK 32-00-00-481-003-A
To Make the Landing Gear and the Doors Safe after a Free-Fall Extension


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: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
1. Reason for the Job
To make the landing gears and the landing gear doors safe for maintenance after a free-fall extension system operation in flight.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
WARNING NOTICE(S)
 B. Referenced Information
REFERENCE
DESIGNATION
TASK 29-10-00-864-001-A
Depressurize the Green Hydraulic System
TASK 32-00-00-481-001-A
Installation of the Safety Devices on the Landing Gears
TASK 32-00-00-481-002-A
Installation of the Safety Devices on the Landing Gear Doors
TASK 32-00-00-860-003-A
To Put the Landing Gear System back to the Normal Mode after a Free-Fall Extension (for corrective action)
CMM 528114
(for corrective action)
3. Job Set-up
Subtask 32-00-00-860-053-A
A. Aircraft Maintenance Configuration
   (1) Put the wheel chocks in position.
   (2) Put the safety barriers in position.
   (3) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the landing gear or the landing gear doors.
   (4) If necessary, depressurise the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001).
NOTE: To put the landing gear back to the normal mode (after a free-fall extension refer to (Ref. AMM TASK 32-00-00-860-003).
4. Procedure
Subtask 32-00-00-481-052-A
A. Installation of the Safety Devices
   (1) For the installation procedure of the safety devices refer to (Ref. AMM TASK 32-00-00-481-001) and (Ref. AMM TASK 32-00-00-481-002).
Subtask 32-00-00-200-050-A
B. Inspection of the Main Landing Gear Door Ramps
   (1) Inspect the lateral and central door ramp on each MLG door. Make sure that there is no sign of:
  • damage/wear to the surface of each ramp
  • corrosion on the surface of each ramp.
   (2) Replace each door ramp that shows signs of damage/corrosion, refer to CMM 528114.
5. Close-up
Subtask 32-00-00-942-060-A
A. Removal of Equipment
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the safety barriers.
   (3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 12:29:51 UTC