W DOC AIRBUS | AMM A320F

Close the Main Gear Doors after Access


TASK 32-12-00-410-001-A
Close the Main Gear Doors after Access


WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
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.
WARNING: PRESSURIZE ONLY THE HYDRAULIC SYSTEM(S) THAT IS (ARE) NECESSARY FOR THE TASK. ISOLATE THE OTHER HYDRAULIC SYSTEM(S) BEFORE YOU SUPPLY HYDRAULIC POWER TO THE AIRCRAFT.
1. Reason for the Job
To close the main landing gear (MLG) doors after they have been opened for access to zones 147 and 148.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
195BB, 196BB
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
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 29-10-00-863-001-A
Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-864-001-A
Depressurize the Green Hydraulic System
TASK 29-23-00-863-001-A
Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A
Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 32-00-00-081-002-A
Removal of the Safety Devices from the Landing Gear Doors
3. Job Set-up
Subtask 32-12-00-941-056-A
A. Safety Precautions
   (1) In the cockpit, make sure that:
  • On panel 400VU, landing gear control-lever 6GA is in the DOWN position
  • On panel 110VU, GRAVITY GEAR EXTN handle is folded into the center console.
   (2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
Subtask 32-12-00-860-053-A
B. Aircraft Maintenance Configuration
   (1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that the Green hydraulic system is depressurized
(Ref. AMM TASK 29-10-00-864-001) or (Ref. AMM TASK 29-23-00-864-001).
   (3) Make sure that the MLG door ground-control-handle is locked in the OPEN position.
4. Procedure
Subtask 32-12-00-410-050-A
WARNING: MAKE SURE THAT THE CONTROLS AGREE WITH THE POSITION OF THE ITEMS THEY OPERATE BEFORE YOU PRESSURIZE A HYDRAULIC SYSTEM. UNWANTED MOVEMENT OF HYDRAULICALLY OPERATED ITEMS CAN CAUSE SERIOUS INJURY AND/OR DAMAGE.
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.
A. Close the Applicable MLG Door(s)
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) If only one door is open, remove the WARNING NOTICE(S) from the MLG door ground-control-handle of the closed MLG door.
   (3) Remove the safety device from the applicable MLG door actuating-cylinder (Ref. AMM TASK 32-00-00-081-002).
   (4) Stand away from the travel range of the MLG door.
   (5) Pressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-23-00-863-001).
   (6) Move the applicable MLG door ground-control-handle to the CLOSE position, as follows:
     (a) Remove the safety pin.
     (b) Push and hold the pushbutton and move the MLG door ground-control-handle up.
     (c) Release the pushbutton to lock the MLG door ground-control-handle in the CLOSE position.
     (d) Install the safety pin.
   (7) Close access panel 195BB ( 196BB).
   (8) Depressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-864-001) or (Ref. AMM TASK 29-23-00-864-001).
5. Close-up
Subtask 32-12-00-860-052-A
A. Aircraft Maintenance Configuration
   (1) In the cockpit:
     (a) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
     (b) On the panel 11VU, push the WHEEL pushbutton switch in.
     (c) On ECAM, make sure that the applicable green door-uplock symbol is in-line.
     (d) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
Subtask 32-12-00-862-050-A
B. De-energize the Electrical Circuits
   (1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 32-12-00-942-052-A
C. 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 WARNING NOTICE(S).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 00:41:04 UTC