Functional Test of the Normal Extension and Retraction of the Nose Landing Gear

TASK 32-31-00-720-003-A
Functional Test of the Normal Extension and Retraction of the Nose Landing Gear

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.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ROD - NON METALLIC
No specific	AR	SAFETY BARRIER(S)
No specific	AR	TIE WRAP(S)
No specific	1	WARNING NOTICE(S)
98F32304000000	6	TARGET-FALSE

B. 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 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
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 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

3. Job Set-up
Subtask 32-31-00-941-075-A

A. Safety Precautions
(1) Put the SAFETY BARRIER(S) in position.
(2) Make sure that the ground safety locks are installed on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) On panel 400VU:

Make sure that the landing-gear control-lever is in the DOWN position
Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear.

(4) On panel 110VU, make sure that the GRAVITY GEAR EXTN handle is folded into the center console.

Subtask 32-31-00-010-056-A

B. Get Access
(1) Open the MLG doors (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that a 460005835 SLEEVE - GROUND LOCK is installed on each MLG door actuating cylinder (Ref. AMM TASK 32-00-00-481-002).

Subtask 32-31-00-869-084-A

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

Subtask 32-31-00-582-053-A

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

Subtask 32-31-00-860-064-A

E. Aircraft Maintenance Configuration
(1) Energize the electrical circuits from the external power (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).

Subtask 32-31-00-865-069-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 32-31-00-480-052-A

G. Installation of the Test Equipment
(1) Use the TIE WRAP(S) to install the 98F32304000000 TARGET-FALSE on:

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

Subtask 32-31-00-081-052-A

H. Removal of the Safety Devices
(1) Remove the D23080000 PIN-GROUND LOCK,NLG from the NLG.

Subtask 32-31-00-863-065-A

I. Pressurize the Hydraulic System

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.

(1) Pressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-863-001).

4. Procedure
Subtask 32-31-00-720-053-A

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR ARE CLEAR.

A. Functional Test of the Normal Extension and Retraction of the Nose Landing Gear

NOTE: During the test the ECAM will show unwanted indications, which you can ignore.

NOTE: During this test make sure that the ECAM upper display does not show the message L/G LGCIU 1 (2) FAULT.

(1) Do this test:

ACTION	RESULT
1.On panel 400VU: Make sure that the landing-gear control-lever is in DOWN position.	On panel 402VU: The LDG GEAR down and locked lights are on (green)
2.On the ECAM CP: Push the WHEELS pushbutton switch (P/BSW).	On the ECAM lower DU: The NLG door symbol shows the closed and locked position (green) The landing gear systems 1 and 2 symbols show the down and locked position (green).
3.On panel 400VU: Move the landing-gear control-lever to the UP position.	On panel 402VU: The NLG LDG GEAR UNLK light comes on (red).
	On the ECAM lower DU: The NLG door symbol shows the closed and locked position (green) The L/G CTL caption comes into view (amber).
	On the aircraft: The NLG doors start to open.
	On the ECAM lower DU: The NLG door symbol moves to the middle position (amber).
	On the aircraft: The NLG doors are fully open
	On the ECAM lower DU: The NLG door symbol shows the open position (amber).
	On the aircraft: The NLG starts to retract.
	On panel 402VU: The NLG LDG GEAR down and locked light goes off.
	On the ECAM lower DU: The NLG landing gear systems 1 and 2 symbols change color (red).
	On the aircraft: The NLG is retracted and locked up.
	On panel 402VU: The NLG LDG GEAR UNLK light goes off.
	On the ECAM lower DU: The NLG landing gear systems 1 and 2 symbols go out view.
4.On the aircraft: Close the MLG uplocks. NOTE: If it is necessary to close the NLG doors during the test, you must: Use an applicable ROD - NON METALLIC to close the MLG leg uplocks. Do this procedure for each retraction sequence that you will do.	On the ECAM lower DU: The L/G CTL caption goes out of view.
	On the aircraft: The NLG doors start to close.
	On the ECAM lower DU: The NLG door symbols move to the middle position (amber).
	On the aircraft: The NLG doors are closed and locked up.
	On the ECAM lower DU: The NLG door symbols show the closed and locked position (green).
5.On panel 400VU: Move the landing-gear control-lever to the DOWN position.	On panel 402VU: The NLG LDG GEAR UNLK lights come on (red).
	On the ECAM lower DU: The L/G CTL caption comes into view (amber).
	On the aircraft: The NLG doors start to open.
	On the ECAM lower DU: The NLG door symbols move to the middle position (amber).
	On the aircraft: The NLG doors are fully open
	On the ECAM lower DU: The NLG symbols show the open position (amber)
	On the aircraft: The NLG starts to extend.
	On the ECAM lower DU: The NLG landing gear systems 1 and 2 symbols come into view (red).
	On the aircraft: The NLG is down and locked.
	On panel 402VU: The NLG GEAR UNLK light goes off (red) The NLG LDG GEAR down and locked light comes on (green).
	On the ECAM lower DU: The L/G CTL caption goes out of view The NLG landing gear systems 1 and 2 symbols change color (green).
	On the aircraft: The NLG doors start to close.
	On the ECAM lower DU: The NLG door symbol moves to the middle position (amber).
	On the aircraft: The NLG doors are closed and locked up.
	On the ECAM lower DU: The NLG door symbols show the closed and locked position (green) The NLG landing gear systems 1 and 2 symbols show the down and locked position (green).

(2) Do the test procedure again. This is to make sure that the two LGCIUs operate correctly.

5. Close-up
Subtask 32-31-00-864-065-A

A. Depressurize the Hydraulic System
(1) Depressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-864-001).

Subtask 32-31-00-860-067-A

B. Aircraft Maintenance Configuration
(1) Make sure that the MLG uplocks are open.
(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(3) Remove and discard the TIE WRAP(S).
(4) Remove the 98F32304000000 TARGET-FALSE from:

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

(5) Install the D23080000 PIN-GROUND LOCK,NLG in the NLG (Ref. AMM TASK 32-00-00-481-001).

Subtask 32-31-00-869-085-A

C. Flight Configuration Precautions
(1) Put the aircraft back to the ground configuration (Ref. AMM TASK 32-00-00-860-002).

Subtask 32-31-00-410-055-A

D. Close Access
(1) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).

Subtask 32-31-00-860-065-A

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

Subtask 32-31-00-586-051-A

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

Subtask 32-31-00-942-063-A

G. Removal of Equipment
(1) Remove the SAFETY BARRIER(S).
(2) Make sure that the work area is clean and clear of tools and other items.
(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 04:06:57 UTC