Check of the System 2 Proximity Sensors of the Landing Gear and the Landing Gear Doors

TASK 32-31-00-040-003-A
Check of the System 2 Proximity Sensors of the Landing Gear and the Landing Gear Doors

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
MMEL 32-32-02A
LGCIU 2 RH L/G SHOCK ABSORBER PROXIMITY DETECTOR
MMEL 32-32-03A
LGCIU 2 LH L/G SHOCK ABSORBER PROXIMITY DETECTOR
MMEL 32-32-04A
LGCIU 2 NOSE L/G SHOCK ABSORBER PROXIMITY DETECTOR
MMEL 32-32-05A
LGCIU 2 RH L/G DOWN LOCK PROXIMITY DETECTOR
MMEL 32-32-06A
LGCIU 2 LH L/G DOWN LOCK PROXIMITY DETECTOR
MMEL 32-32-07A
LGCIU 2 NOSE L/G DOWN LOCK PROXIMITY DETECTOR
MMEL 32-32-08A
LGCIU 2 RH L/G UP LOCK PROXIMITY DETECTOR
MMEL 32-32-09A
LGCIU 2 LH L/G UP LOCK PROXIMITY DETECTOR
MMEL 32-32-10A
LGCIU 2 NOSE L/G UP LOCK PROXIMITY DETECTOR
MMEL 32-32-11A
LGCIU 2 RH L/G DOORS OPEN PROXIMITY DETECTOR
MMEL 32-32-12A
LGCIU 2 LH L/G DOORS OPEN PROXIMITY DETECTOR
MMEL 32-32-13A
LGCIU 2 NOSE L/G DOORS OPEN PROXIMITY DETECTOR
MMEL 32-32-14A
LGCIU 2 RH L/G DOORS CLOSED PROXIMITY DETECTOR
MMEL 32-32-15A
LGCIU 2 LH L/G DOORS CLOSED PROXIMITY DETECTOR
MMEL 32-32-16A
LGCIU 2 NOSE L/G DOORS CLOSED PROXIMITY DETECTOR
MMEL 32-32-17A
LGCIU 2 BOGIE PROXIMITY DETECTOR
11GA(10GA), 13GA, 17GA(16GA), 19GA, 23GA(22GA), 25GA, 29GA(28GA), 31GA, 35GA(34GA), 39GA(38GA).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	1	CAP - PROTECTION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
98D32203502000	AR	SAFETY PIN - NLG DOOR

B. Referenced Information

REFERENCE	DESIGNATION
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 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 32-12-00-410-001-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
TASK 32-69-00-740-001-A	BITE Check of Landing-Gear Control Interface-Unit (LGCIU) With Use of MCDU to Ensure that Continuous BITE is Operative

3. Job Set-up
Subtask 32-31-00-941-069-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 ground safety locks are on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) On the panel 400VU:

make sure that the landing-gear control-lever 6GA is in the DOWN position
put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear/landing gear doors.

Subtask 32-31-00-010-064-A

B. Get Access
(1) Open the applicable MLG door (Ref. AMM TASK 32-12-00-010-001) or the applicable NLG door (Ref. AMM TASK 32-22-00-010-001).
(2) Make sure that the GROUND LOCK SLEEVE is installed if you open the MLG doors on the applicable MLG door actuating-cylinder (Ref. AMM TASK 32-00-00-481-002).
(3) Make sure that the 98D32203502000 SAFETY PIN - NLG DOOR is installed, if you open the NLG doors, in the rigging holes of the left and right nose gear doors (Ref. AMM TASK 32-00-00-481-002).
(4) Put the ACCESS PLATFORM 2M (6 FT) in position in zone 734/744 for the MLG.
(5) Put the ACCESS PLATFORM 2M (6 FT) in position in zone 123 for the NLG.

Subtask 32-31-00-869-100-A

C. Flight Configuration Precautions
(1) If the electrical power is not necessary for other maintenance tasks, de-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002). Thus it is not necessary to do the flight configuration precautions.
(2) If the electrical power is necessary, do the precautions for flight configuration (Ref. AMM TASK 32-00-00-860-001) before you open the LGCIU circuit breakers.

Subtask 32-31-00-865-089-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

4. Procedure
Subtask 32-31-00-040-052-A

A. Check of the System 2 Proximity Sensors of the Landing Gear and Landing Gear Doors
(1) Do a check of the related proximity sensor(s) and make sure that there is no damage.
(a) If there is damage, a flight in this MMEL condition is not permitted.

NOTE: This MMEL condition is only applicable when there is an electrical fault.

(2) Disconnect the electrical connector from the unserviceable system 2 proximity sensor.
(3) Put a CAP - PROTECTION on the disconnected electrical connector.
(4) Safety the disconnected electrical connector to the applicable aircraft structure.
(5) Do a BITE test (Ref. AMM TASK 32-69-00-740-001) to make sure that the correct system 2 proximity sensor has been electrically deactivated.
(6) Make an entry in the aircraft technical log that the applicable system 2 proximity sensor is electrically deactivated.

Subtask 32-31-00-865-136-A

B. 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

5. Close-up
Subtask 32-31-00-410-062-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001) or the NLG doors (Ref. AMM TASK 32-22-00-410-001) as applicable.

Subtask 32-31-00-942-076-A

B. Removal of Equipment
(1) Remove the SAFETY BARRIER(S).
(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 00:43:46 UTC