Removal of the NLG Free-Fall Extension Cables

TASK 32-33-16-000-001-A
Removal of the NLG Free-Fall Extension Cables

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	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)
No specific	2	WEDGE - NON METALLIC
98A27801001000	1	RIGGING PIN
98A27901002000	1	PIN-RIGGING,RUDDER CONTROL

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
211FF, 211JF, 822

C. 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 32-22-00-010-001-A	Nose Gear Doors - Ground Doors Opening
TASK 53-12-11-000-001-A	Removal of the Cockpit Floor Panels from FR1 thru FR12
TASK 53-12-12-000-001-A	Removal of the Cabin Floor Panels from FR12 thru FR24
Forward Fuselage Floor Panels
Location of the Rigging Pins ** ON A/C NOT FOR ALL
Location of the Rigging Pins ** ON A/C NOT FOR ALL
Free-fall Extension Cables - NLG

3. Job Set-up
Subtask 32-33-16-941-050-A

A. Safety Precautions
(1) Put the SAFETY BARRIER(S) in position.
(2) Make sure that the ground safety locks are 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.
(5) Install a WEDGE - NON METALLIC on each side of the GRAVITY GEAR EXTN handle to lock the handle in position.

Subtask 32-33-16-010-050-B

B. Get Access
(1) Open the NLG doors (Ref. AMM TASK 32-22-00-010-001).
(2) Make sure that a 98D32203502000 SAFETY PIN - NLG DOOR is installed in each NLG door (Ref. AMM TASK 32-00-00-481-002).
(3) Open the lateral avionics-compartment door 822.
(4) Remove the cockpit floor panels 211FF 211JF (Ref. AMM TASK 53-12-11-000-001).
(5) Remove the floor panel 221LF (Ref. AMM TASK 53-12-12-000-001).

Subtask 32-33-16-869-052-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). Then, it is not necessary to operate the LGCIU circuit breakers.
(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 32-33-16-865-050-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

Subtask 32-33-16-480-050-A

E. Installation of the Rigging Pins

Location of the Rigging Pins ** ON A/C NOT FOR ALL

(1) Put the 98A27801001000 RIGGING PIN in the Pin 1 position.
(2) Put the 98A27901002000 PIN-RIGGING,RUDDER CONTROL in the Pin 4 position.

4. Procedure
Subtask 32-33-16-020-050-A

A. Removal of the NLG Free-Fall Extension Cables

WARNING: MAKE SURE THAT THE NLG DOWNLOCK SAFETY PIN AND THE TWO DOOR SAFETY PINS ARE INSTALLED.

(1) Remove the applicable cable(s) (1) and/or (2) as follows:
(a) Remove and discard the cotter pins (8).
(b) Remove these items, the:

nuts (9) and the washers (7)
bolts (4) and the spacers (6)
cable-guard (5).

(c) Remove the cable-guide locking-devices (11) and the fairleads (10).
(d) Remove the locking clips (16) from the turnbuckles (17).
(e) Loosen the turnbuckles (17) for the cables (1) and (2) until the tension in the cables is released.
(f) On the cable(s) to be removed, continue to loosen the turnbuckle(s) (17) until the cable(s) is/are disconnected.
(g) If necessary, temporarily attach the loose cable(s) (12) and/or (14) to the adjacent structure.
(h) Release the cable(s) (1) and/or (2) from the cable pulley (3) and remove it/them from the aircraft.
(2) Remove the applicable cable(s) (12) and/or (14) as follows:
(a) Remove these items, the:

cotter pin (21), the nut (22) and the washer (23)
bolts (13) and (20) and the washer (19)
spacers (18) and the cable-guard (25).

(b) Remove the locking clips (16) from the turnbuckles (17).
(c) Loosen the turnbuckles (17) for the cables (12) and (14) until the tension in the cables is released.
(d) On the cable(s) to be removed, continue to loosen the turnbuckle(s) until the cable(s) is/are disconnected.
(e) If necessary, temporarily attach the loose cable(s) (1) and/or (2) to the adjacent structure.
(f) Release the cable(s) (12) and/or (14) from the cable quadrant (15) on the reduction gearbox and remove it/them from the aircraft.

[Rev.10 from 2021] 2026.04.01 00:46:39 UTC