Retraction of the NLG for Maintenance

TASK 32-30-00-867-003-A
Retraction of the NLG 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: 711
ZONE: 730
ZONE: 740
FIN: 2881GM

1. Reason for the Job
To retract the NLG for maintenance with the NLG doors kept open.
To retract the MLG only, Ref. AMM TASK task 32-30-00-867-006-A.
To retract the all landing gears together, Ref. AMM TASK 32-30-00-867-001-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)
98F32304000000	AR	TARGET-FALSE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
711	NOSE GEAR
730	LEFT MAIN LANDING GEAR & DOORS
740	RIGHT MAIN LANDING GEAR & DOORS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 07-11-00-581-003-A	Lifting of the Aircraft at the Forward Jacking Point, MLG Wheels on the Ground
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
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-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
MLG extension proximity-sensors

3. Job Set-up
Subtask 32-30-00-941-057-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 NLG.
(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 NLG.
(5) Put the WARNING NOTICE(S) in position to tell persons not to pressurize the Yellow and Green hydraulic systems.

Subtask 32-30-00-010-054-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 32-30-00-869-059-A

C. Flight Configuration Precautions
(1) Do the flight configuration precautions (Ref. AMM TASK 32-00-00-860-001).

Subtask 32-30-00-582-053-A

D. Lift the Aircraft
(1) Lift the aircraft at the forward jacking point (Ref. AMM TASK 07-11-00-581-003).

Subtask 32-30-00-860-062-A

E. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(3) 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).
(4) Connect the GROUND POWER CART-HYDRAULIC to the Green hydraulic system.
(a) Do not pressurize the Green hydraulic system.

Subtask 32-30-00-865-055-A

F. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-30-00-480-052-A

G. Installation of the Test Equipment

MLG extension proximity-sensors

(1) Install the 98F32304000000 TARGET-FALSE on:

Left MLG extension proximity-sensors 21GA and 23GA
Right MLG extension proximity-sensors 20GA and 22GA.

Subtask 32-30-00-081-051-A

H. Removal of the Safety Devices
(1) Remove the safety device from the NLG (Ref. AMM TASK 32-00-00-081-001).

4. Procedure
Subtask 32-30-00-867-055-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 NLG for Maintenance

NOTE: In the steps that follow, the indications of only the lights that change are given.

(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: For the MLG, the green lights stay on. For the NLG, the green light goes off and the red light comes on.
On the aircraft: Make sure that the NLG retract freely to the uplock position.	On the aircraft: The NLG start to retract to the uplock position. On panel 402VU: For the MLG, the green lights stay on. For the NLG, the red light stays on. On the aircraft: The NLG is retracted to the uplock position. On panel 402VU: For the MLG, the green lights stay on. For the NLG, the red light goes off.

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:

For the MLG, the green lights stay on.
For the NLG, the green light goes off and the red light comes on.

On the aircraft:

Make sure that the NLG retract freely to the uplock position.

On the aircraft:

The NLG start to retract to the uplock position.

On panel 402VU:

For the MLG, the green lights stay on.
For the NLG, the red light stays on.

On the aircraft:

The NLG is retracted to the uplock position.

On panel 402VU:

For the MLG, the green lights stay on.
For the NLG, the red light goes off.

(4) Depressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-864-001).

5. Close-up
Subtask 32-30-00-080-050-A

A. Removal of the Test Equipment
(1) Remove the 98F32304000000 TARGET-FALSE from:

Left MLG extension proximity-sensors 21GA and 23GA
Right MLG extension proximity-sensors 20GA and 22GA.

Subtask 32-30-00-860-064-A

B. Aircraft Maintenance Configuration
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).

Subtask 32-30-00-481-054-A

C. 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) is in position 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 32-30-00-865-069-A

D. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-30-00-860-063-A

E. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 00:43:33 UTC