Nose Gear Doors - Ground Doors Closing

TASK 32-22-00-410-001-A
Nose Gear Doors - Ground Doors Closing

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

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

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
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 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
Ground Door Opening/Closing

3. Job Set-up
Subtask 32-22-00-867-051-A

A. Aircraft Maintenance Configuration
(1) In the cockpit, on the center pedestal, make sure that :

the free-fall control handle is in the Normal position.

(2) Make sure that the control lever of the landing gear is in the DOWN position.

Subtask 32-22-00-941-051-A

B. Safety Precautions
(1) Put the WARNING NOTICE(S) in position to tell persons not to operate the nose landing gear.
(2) Put the SAFETY BARRIER(S) in position to prevent access to the travel ranges of the nose gear door.
(3) Make sure that the Ground Door-Opening Handle is locked in the Opening position.

Subtask 32-22-00-863-050-A

C. Pressurize the Green hydraulic system (Ref. AMM TASK 29-23-00-863-001) or (Ref. AMM TASK 29-10-00-863-001)

4. Procedure
Subtask 32-22-00-081-050-A

A. Unlock the NLG Doors
(1) Remove the 98D32203502000 SAFETY PIN - NLG DOOR from the rigging holes of the left and right doors of the nose gear.

Subtask 32-22-00-010-052-A

B. Close the NLG Doors

WARNING: FOR SAFETY STAND AFT OF THE GEAR LEG WHEN YOU OPERATE THE GROUND OPENING CONTROL OF THE DOOR. CAREFULLY READ THE PLACARD ON THE LEG DOOR BEFORE YOU OPEN THE NOSE GEAR DOORS.

(1) Remove the quick release pin from the pusher of the ground door-opening handle.
(2) Push the pusher. Move the ground door-opening handle from the opening position to the closed position.
(3) Release the pusher. Make sure that the ground door-opening handle is locked in the closed position.
(4) Install the quick release pin in the pusher of the ground door-opening handle to prevent its operation.
(5) Make sure that the nose gear doors are closed and uplocked.

NOTE: If the doors do not close, put the ground door-opening handle in the opening position.
(This is possibly because there is not sufficient pressure in the hydraulic system of the landing gear).

5. Close-up
Subtask 32-22-00-864-050-A

A. Depressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-864-001) (Ref. AMM TASK 29-23-00-864-001)

Subtask 32-22-00-942-051-A

B. Removal of Equipments
(1) Remove the safety barriers.
(2) Remove the warning notices.
(3) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 03:45:53 UTC