W DOC AIRBUS | AMM A320F

Retraction of the Landing Gears for Maintenance

TASK 32-30-00-867-001-A
Retraction of the Landing Gears for Maintenance

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: 211
ZONE: 711
ZONE: 731
ZONE: 741
FIN: 2501GM
FIN: 2502GM
FIN: 2881GM
1. Reason for the Job
To retract the landing gears for maintenance with the landing gear doors kept open.
To retract the MLG only, Ref. AMM TASK 32-30-00-867-006-A.
To retract the NLG only, Ref. AMM TASK 32-30-00-867-003-A.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
GROUND POWER CART-HYDRAULIC
No specific
AR
JACK - SAFETY STAY
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
211
COCKPIT
711
NOSE GEAR
731
L.H MAIN GEAR
741
R.H MAIN GEAR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 07-11-00-581-001-A
Lifting for Aircraft Maintenance Operations
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 29-00-00-864-001-A
Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
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 29-10-00-864-002-A
Depressurize the Yellow Hydraulic System
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 32-00-00-081-001-A
Removal of the Safety Devices from the Landing Gears
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 32-00-00-860-001-A
Flight Configuration Precautions with Electrical Power
TASK 32-00-00-860-001-A-01
Flight Configuration Precautions without Electrical Power
TASK 32-12-00-010-001-A
Open the Main Gear Doors for Access
TASK 32-22-00-010-001-A
Nose Gear Doors - Ground Doors Opening
3. Job Set-up
Subtask 32-30-00-941-053-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 safety devices are installed on the landing gears (Ref. AMM TASK 32-00-00-481-001).
   (3) On panel 400VU:
     (a) Make sure that the landing-gear control lever (6GA) is in the DOWN position.
     (b) Put the WARNING NOTICE(S) in position to tell persons not to operate the landing gears.
   (4) On panel 110VU:
     (a) Make sure that the GRAVITY GEAR EXTN handle is in the fully counterclockwise position.
     (b) Fold the GRAVITY GEAR EXTN handle into the center console.
     (c) Put the WARNING NOTICE(S) on the GRAVITY GEAR EXTN handle to tell persons not to operate the landing gears.
   (5) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow and Green hydraulic systems.
Subtask 32-30-00-010-053-A
B. Get Access
   (1) Open the MLG and NLG doors (Ref. AMM TASK 32-12-00-010-001) and (Ref. AMM TASK 32-22-00-010-001).
   (2) Make sure that the safety devices are installed on the landing gear doors (Ref. AMM TASK 32-00-00-481-002).
Subtask 32-30-00-869-057-A
C. Flight Configuration Precautions
   (1) Do the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).
Subtask 32-30-00-582-052-A
D. Lift the Aircraft
   (1) Lift the aircraft on jacks (Ref. AMM TASK 07-11-00-581-001).
Subtask 32-30-00-860-058-A
E. Aircraft Maintenance Configuration
   (1) Make sure that the Green and Yellow hydraulic systems are depressurized
(Ref. AMM TASK 29-00-00-864-001), (Ref. AMM TASK 29-10-00-864-001) and (Ref. AMM TASK 29-10-00-864-002).
   (2) Connect the GROUND POWER CART-HYDRAULIC to the Green hydraulic system.
     (a) Do not pressurize the Green hydraulic system.
   (3) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
     (a) If you use the APU to energize the aircraft electrical circuits:
       1 Set ADIRU 1 or 3 to ON.
       2 On panel 20VU, set IR1 or IR3 selector switch to ATT.
   (4) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
Subtask 32-30-00-865-054-A
F. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUL/G/LGCIU/SYS1/NORM1GAC09
** ON A/C NOT FOR ALL
121VULGCIU/BAT SPLY/SYS259GAR33
121VULGCIU/BAT SPLY/SYS158GAR32
** ON A/C ALL
121VUHYDRAULIC/LGCIU/SYS22GAQ35
121VUHYDRAULIC/LGCIU/SYS1/GRND SPLY52GAQ34
** ON A/C NOT FOR ALL
121VULGCIU/BAT SPLY/SYS259GAR32
121VULGCIU/BAT SPLY/SYS158GAR31
Subtask 32-30-00-081-050-A
G. Removal of the Safety Devices
   (1) Remove the safety devices from the landing gears (Ref. AMM TASK 32-00-00-081-001).
4. Procedure
Subtask 32-30-00-867-053-A
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR ARE CLEAR.
CAUTION: REMOVE THE SAFETY STAY BEFORE YOU DO THE LANDING GEAR EXTENSION AND RETRACTION TESTS. DAMAGE TO THE FUSELAGE CAN OCCUR IF THE AIRCRAFT MOVES DURING THE TESTS.
A. Retraction of the Landing Gears for Maintenance
NOTE: In the steps that follow, the indications of only the lights that change are given.
NOTE: During this procedure, the ECAM shows the message L/G doors not closed, which you can ignore.
   (1) Remove the JACK - SAFETY STAY from FR73/74.
   (2) Pressurize the Green Hydraulic system with the GROUND POWER CART-HYDRAULIC (Ref. AMM TASK 29-10-00-863-001).
ACTION
RESULT
None
On panel 402VU:
  • The green lights are on.
On panel 400VU:

  • Move the landing-gear control lever (6GA) to the UP position.
On panel 402VU:

  • The green lights go off.
  • The red lights come on.
On the aircraft:
  • Make sure that the landing gears retract freely to the uplock position.
On the aircraft:
  • The landing gears starts to retract to the uplock position.
On panel 402VU:
  • The red lights stay on.
On the aircraft:
  • The landing gears are retracted to the uplock position.
On panel 402VU:
  • The red lights go off.
   (4) Depressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-864-001).
5. Close-up
Subtask 32-30-00-860-053-A
A. Aircraft Maintenance Configuration
   (1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
Subtask 32-30-00-481-056-A
B. Installation of the Safety Devices
   (1) On panel 110VU:
     (a) Make sure that the GRAVITY GEAR EXTN handle is in the fully counterclockwise position.
     (b) Make sure that the GRAVITY GEAR EXTN handle is folded into the center console.
     (c) Make sure that the WARNING NOTICE(S) are installed on the GRAVITY GEAR EXTN handle to tell persons not to operate the landing gears.
   (2) Install the JACK - SAFETY STAY at FR73/74.
Subtask 32-30-00-865-071-A
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUL/G/LGCIU/SYS1/NORM1GAC09
** ON A/C NOT FOR ALL
121VULGCIU/BAT SPLY/SYS259GAR33
121VULGCIU/BAT SPLY/SYS158GAR32
** ON A/C ALL
121VUHYDRAULIC/LGCIU/SYS22GAQ35
121VUHYDRAULIC/LGCIU/SYS1/GRND SPLY52GAQ34
** ON A/C NOT FOR ALL
121VULGCIU/BAT SPLY/SYS259GAR32
121VULGCIU/BAT SPLY/SYS158GAR31
Subtask 32-30-00-860-061-A
D. Aircraft Maintenance Configuration
   (1) If the aircraft electrical circuits were energized from the APU:
     (a) Set ADIRU 1 or 3 to OFF.
     (b) On panel 20VU, set IR1 or IR3 selector switch to OFF.
   (2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 00:43:38 UTC
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