Extension of the NLG after Maintenance

TASK 32-30-00-867-004-A
Extension of the NLG after 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 extend the NLG after they were retracted, 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	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 07-11-00-586-001-A	Lowering of the Aircraft at 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 32-00-00-481-001-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 32-00-00-860-002-A	Ground Configuration after Flight Configuration with Electrical Power
TASK 32-00-00-860-002-A-01	Ground Configuration after Flight Configuration without Electrical Power
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
TASK 32-22-00-010-001-A	Nose Gear Doors - Ground Doors Opening
TASK 32-22-00-410-001-A	Nose Gear Doors - Ground Doors Closing
MLG extension proximity-sensors

3. Job Set-up
Subtask 32-30-00-941-059-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 device is installed on the MLG (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 UP position
(b) Make sure that the WARNING NOTICE(S) is 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) 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 NLG.
(5) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Yellow and Green hydraulic systems.

Subtask 32-30-00-010-056-A

B. Get Access
(1) Make sure that the MLG and NLG doors are open (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 32-30-00-869-063-A

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

Subtask 32-30-00-582-055-A

D. Lift the Aircraft
(1) Make sure that the aircraft is lifted on the forward jacking point (Ref. AMM TASK 07-11-00-581-003).

Subtask 32-30-00-860-068-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 32-30-00-865-060-A

F. Remove the safety clip(s) and the tag(s) and close 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 32-30-00-480-053-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.

4. Procedure
Subtask 32-30-00-867-057-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. Extension of the NLG after 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

On panel 400VU:

Move the landing-gear control lever (6GA) to the DOWN position.

On panel 402VU:

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

On the aircraft:

Make sure that the NLG extend freely to the downlock position.

On the aircraft:

The NLG start to extend to the downlock 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 extended to the downlock position.

On panel 402VU:

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

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

5. Close-up
Subtask 32-30-00-080-051-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 32-30-00-860-069-A

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

Subtask 32-30-00-481-052-A

C. Installation of the Safety Devices
(1) Install the safety device on the NLG (Ref. AMM TASK 32-00-00-481-001).
(2) Install the JACK - SAFETY STAY at FR73/74.

Subtask 32-30-00-586-052-A

D. Lower the Aircraft
(1) Lower the aircraft off the jack at the forward jacking point (Ref. AMM TASK 07-11-00-586-001).

Subtask 32-30-00-869-062-A

E. Aircraft Maintenance Configuration
(1) Put the aircraft back to the ground configuration (Ref. AMM TASK 32-00-00-860-002).

Subtask 32-30-00-410-056-A

F. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the MLG and NLG doors (Ref. AMM TASK 32-12-00-410-001) and (Ref. AMM TASK 32-22-00-410-001).

Subtask 32-30-00-860-070-A

G. 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).

Subtask 32-30-00-942-060-A

H. Removal of Equipment
(1) Remove the SAFETY BARRIERS.
(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 00:43:34 UTC