W DOC AIRBUS | AMM A320F

Detailed Inspection of Bushings and Bearings in MLG Airframe Attachment Fittings


TASK 32-11-00-220-006-A
Detailed Inspection of Bushings and Bearings in MLG Airframe Attachment Fittings


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: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 570
ZONE: 670
1. Reason for the Job
Refer to the MPD TASK: 321100-15
DETAILED INSPECTION OF BUSHINGS AND BEARINGS IN MLG AIRFRAME ATTACHMENT FITTINGS
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 3M (10 FT)
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
570
AFT SECTION OF L WING & TE FIXED STRUCT
670
AFT SECTION OF R WING & TE FIXED STRUCT
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 07-11-00-581-001-A
Lifting for Aircraft Maintenance Operations
TASK 07-11-00-586-002-A
Lowering of the Aircraft for Maintenance Operations
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 29-10-00-864-001-A
Depressurize the Green Hydraulic System
TASK 32-00-00-081-002-A
Removal of the Safety Devices from the Landing Gear Doors
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 32-11-11-000-001-A
Removal of the MLG Leg Assembly
TASK 32-11-11-400-001-A
Installation of the MLG Leg Assembly
TASK 32-12-00-010-001-A
Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A
Close the Main Gear Doors after Access
3. Job Set-up
Subtask 32-11-00-941-092-A
A. Safety Precautions
   (1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
   (2) Make sure that the ground safety locks are on the landing gears (Ref. AMM TASK 32-00-00-481-001).
   (3) On panel 400VU:
  • make sure that the landing-gear control-lever 6GA is in the DOWN position
  • put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear.
   (4) On the panel 110VU, make sure that the GRAVITY GEAR EXT handle is folded into the center console.
Subtask 32-11-00-860-069-A
B. Aircraft Maintenance Configuration
   (1) Open the MLG doors for access (Ref. AMM TASK 32-12-00-010-001).
   (2) Make sure that the safety devices are installed on the landing gear doors (Ref. AMM TASK 32-00-00-481-002).
   (3) Make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).
   (4) Make sure that the Green hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-001).
Subtask 32-11-00-581-058-A
C. Lift the Aircraft
   (1) Lift the aircraft on jacks (Ref. AMM TASK 07-11-00-581-001).
Subtask 32-11-00-010-084-A
D. Get Access
   (1) Remove the applicable MLG leg (Ref. AMM TASK 32-11-11-000-001).
   (2) Put an ACCESS PLATFORM 3M (10 FT) at zone 731 and/or 741.
Subtask 32-11-00-160-054-A
E. Clean the inspection area
   (1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean these LH and/or RH airframe attachment points for inspection:
  • MLG forward-pintle airframe attachment-fitting
  • MLG aft-pintle airframe attachment-fitting
  • MLG side-stay airframe attachment-fitting
  • MLG retraction-actuator airframe attachment-fitting.
4. Procedure
Subtask 32-11-00-220-075-A
A. Detailed Inspection of the Bushings and the Bearings in the MLG Airframe Attachment-Fittings
   (1) Do a detailed inspection of the bushings and the bearings in the:
  • MLG forward-pintle airframe attachment-fitting
  • MLG aft-pintle airframe attachment-fitting
  • MLG side-stay airframe attachment-fitting
  • MLG retraction-actuator airframe attachment-fitting.
     (a) Do the inspection for:
  • Cracks
  • Corrosion
  • Sealant damage
  • The bushings and the bearings attached correctly
  • Evident wear
  • Other damage to the bushings and the bearings.
     (b) If you find damage, contact AIRBUS.
5. Close-up
Subtask 32-11-00-420-054-A
A. Install the Equipment
   (1) Install the applicable MLG leg (Ref. AMM TASK 32-11-11-400-001).
Subtask 32-11-00-586-063-A
B. Lower the Aircraft
   (1) Remove the access platform(s).
   (2) Make sure that the work area is clean and clear of tools and other items.
   (3) Lower the aircraft off jacks (Ref. AMM TASK 07-11-00-586-002).
Subtask 32-11-00-410-078-A
C. Close Access
   (1) Remove the safety devices from the landing gear doors (Ref. AMM TASK 32-00-00-081-002).
   (2) Close the landing gear doors (Ref. AMM TASK 32-12-00-410-001).
Subtask 32-11-00-942-093-A
D. Removal of Equipment
   (1) Remove the SAFETY BARRIER(S).
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 00:39:43 UTC