To Put the Landing Gear System back to the Normal Mode after a Free-Fall Extension

TASK 32-00-00-860-003-A
To Put the Landing Gear System back to the Normal Mode after a Free-Fall Extension

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: 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
To put the landing gear system back to the normal mode after a free-fall system operation in flight (and the landing gear and doors safetied) (Ref. TASK 32-00-00-481-003-A).
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	AR	WARNING NOTICE(S)
460005835	2	SLEEVE - GROUND LOCK
98D32203502000	2	SAFETY PIN - NLG DOOR

B. Referenced Information

REFERENCE	DESIGNATION
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 32-00-00-481-003-A	To Make the Landing Gear and the Doors Safe after a Free-Fall Extension
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 32-33-00-820-002-A	Adjustment of the NLG Free-Fall Extension Mechanical System
TASK 32-33-00-820-004-A	Adjustment of the MLG Free-Fall Extension Mechanical System
Main and Nose Landing-Gear Doors Safety-Devices
NLG Rigging Pin Hole Locations
MLG Rigging Pin Hole Locations

3. Job Set-up
Subtask 32-00-00-941-058-A

A. Removal of the Safety Devices from the Landing Gear Doors
(1) Make sure that the landing gear and doors are safe and in a serviceable condition (Ref. AMM TASK 32-00-00-481-003).
(2) On the panel 400VU:

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

(3) Remove the 98D32203502000 SAFETY PIN - NLG DOOR from the linkage of each forward NLG door.
(4) Remove the 460005835 SLEEVE - GROUND LOCK from the actuating cylinder of each MLG door.

4. Procedure
Subtask 32-00-00-867-050-A

A. Put the Aircraft back to the Normal Configuration

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

WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE ACTUATING CYLINDERS OF THE LANDING GEAR LOCK-STAYS. MOVEMENT OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

(1) Make sure that the travel ranges of the landing gear doors are clear.
(2) Pressurize the Green hydraulic system (Ref. AMM TASK 29-10-00-863-001).
(3) Close the landing gear doors:

CAUTION: DO NOT TURN THE GRAVITY GEAR EXTENSION HANDLE MORE THAN 3 FULL TURNS. THIS CAN CAUSE DAMAGE TO THE FREE FALL EXTENSION SYSTEM.

(a) Turn the GRAVITY GEAR EXTN handle counterclockwise three full turns at a rate of one full turn at an interval of five seconds.
(b) All the doors will close.
(4) Put the GRAVITY GEAR EXTN handle in the stowed position.
(5) Open the MLG doors (Ref. AMM TASK 32-12-00-010-001) for access.
(6) Open the NLG doors (Ref. AMM TASK 32-22-00-010-001) for access.
(7) Depressurize the Green hydraulic system (Ref. AMM TASK 29-00-00-864-001).
(8) Put the ACCESS PLATFORM 2M (6 FT) below the applicable component that you will examine.
(9) Make sure that the rigging pin holes on these components are aligned:

the three landing gear uplocks
the three landing gear door uplocks
the two landing gear vent valves
the landing gear cut-out valve.

(10) If the rigging pin holes do not align:

for the NLG, adjust the NLG mechanical system (Ref. AMM TASK 32-33-00-820-002)
for the MLG, adjust the MLG mechanical system (Ref. AMM TASK 32-33-00-820-004).

(11) Remove the access platform(s).
(12) Close the MLG doors (Ref. AMM TASK 32-12-00-410-001).
(13) Close the NLG doors (Ref. AMM TASK 32-22-00-410-001).

5. Close-up
Subtask 32-00-00-942-054-A

A. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the safety barriers.
(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 00:39:21 UTC