Apply Temporary Protection to End Fittings of Electrical Conduits in Wing Inboard Leading Edge

TASK 24-92-00-210-003-A
Apply Temporary Protection to End Fittings of Electrical Conduits in Wing Inboard Leading Edge

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.

WARNING: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND THE CAUTIONS INCLUDED IN THE REFERENCED PROCEDURES.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 521
ZONE: 621

1. Reason for the Job
Refer to the MPD TASK: 240000-04
APPLY TEMPORARY PROTECTION TO END FITTINGS OF ELECTRICAL CONDUITS IN WING INBOARD LEADING EDGE
Apply temporary protection to end fittings of electrical conduits in wing inboard leading-edge.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	BRUSH - BRISTLED
No specific	AR	SPRAY - BOTTLE, PUMP TYPE (NON AEROSOL)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.12ACB1)	Corrosion Preventive Compound-Heavy Duty Hard Film -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
521	INBOARD FIXED L.E STRUCTURE
621	INBOARD FIXED L.E STRUCTURE
521GB, 621GB
471DL, 481DR
472AR, 481AL
471CL, 482CR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 12-34-24-869-002-A	Aircraft Grounding (Earthing) for the Maintenance Operations
TASK 12-34-24-869-002-A-01	Aircraft Grounding (Earthing) during Transit, Turnaround or Overnight Stop
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 27-80-00-866-004-A	Extending the Slats on the Ground
TASK 27-80-00-866-005-A	Retracting the Slats on the Ground
TASK 54-53-11-000-002-A	Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-002-B	Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-804-A	Removal of the Pylon-to-Wing Access Panels and Doors
TASK 54-53-11-400-002-A	Installation of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-B	Installation of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-804-A	Installation of the Pylon-to-Wing Access Panels and Doors
TASK 57-41-37-000-010-A	Removal of the Access Panel
TASK 57-41-37-400-010-A	Installation of the Access Panel
ESPM 203330
Electrical Harness Conduits - Corrosion Protection
Typical Fittings
Location of Conduit Fittings

3. Job Set-up
Subtask 24-92-00-860-055-A

A. Aircraft Maintenance Configuration
(1) Extend the slats (Ref. AMM TASK 27-80-00-866-004).

Subtask 24-92-00-862-052-A

B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 24-92-00-869-054-A

C. Connect the aircraft to the ground (Ref. AMM TASK 12-34-24-869-002).

Subtask 24-92-00-010-201-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the wing inboard leading-edge.
(2) For the left wing.
(a) Remove and retain the access panels:

(3) For the right wing.
(a) Remove and retain the access panels:

Subtask 24-92-00-010-201-C ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the wing inboard leading-edge.
(2) For the left wing.
(a) Remove and retain the access panels:

521GB (Ref. AMM TASK 57-41-37-000-010):
. If necessary, remove the access panel 472AR (Ref. AMM TASK 54-53-11-000-804).
471CL (Ref. AMM TASK 54-53-11-000-804).

(3) For the right wing.
(a) Remove and retain the access panels:

621GB (Ref. AMM TASK 57-41-37-000-010):
. If necessary, remove the access panel 481AL (Ref. AMM TASK 54-53-11-000-804).
482CR (Ref. AMM TASK 54-53-11-000-804).

Subtask 24-92-00-010-201-E ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the wing inboard leading-edge.
(2) For the left wing.
(a) Remove and retain the access panels:

(3) For the right wing.
(a) Remove and retain the access panels:

Subtask 24-92-00-010-201-F ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the wing inboard leading-edge.
(2) For the left wing.
(a) Remove and retain the access panels:

(3) For the right wing.
(a) Remove and retain the access panels:

4. Procedure
Subtask 24-92-00-210-052-A

A. Temporary Protection of the Electrical Conduits End-Fittings in the Wing Inboard Leading-Edge

Electrical Harness Conduits - Corrosion Protection

Typical Fittings

Location of Conduit Fittings

WARNING: BE CAREFUL NOT TO CUT YOUR FINGERS. FLAKES OF NICKEL ARE SHARP.

(1) At each fitting use the procedure that follows to protect against corrosion:
(a) Use Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) to remove any contamination from the fitting.
(b) Remove any flakes or blisters, make sure that the you do not damage the base metal while you do this task.

NOTE: We recommend that you use a dental tool or a seal tool (non metallic) to remove the flakes and the blisters.

(c) Use a BRUSH - BRISTLED or an SPRAY - BOTTLE, PUMP TYPE (NON AEROSOL) to apply a continuous thin and smooth coat of Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) , to cover all the fitting ESPM 203330.

5. Close-up
Subtask 24-92-00-410-208-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) For the left wing.
(a) Install the access panels:

(3) For the right wing.
(a) Install the access panels:

Subtask 24-92-00-410-208-C ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) For the left wing.
(a) Install the access panels:

521GB (Ref. AMM TASK 57-41-37-400-010):
. Install the access panel 472AR (Ref. AMM TASK 54-53-11-400-804), if removed.
471CL (Ref. AMM TASK 54-53-11-400-804).

(3) For the right wing.
(a) Install the access panels:

621GB (Ref. AMM TASK 57-41-37-400-010):
. Install the access panel 481AL (Ref. AMM TASK 54-53-11-400-804), if removed.
482CR (Ref. AMM TASK 54-53-11-400-804).

Subtask 24-92-00-410-208-E ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) For the left wing.
(a) Install the access panels:

(3) For the right wing.
(a) Install the access panels:

Subtask 24-92-00-410-208-F ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) For the left wing.
(a) Install the access panels:

(3) For the right wing.
(a) Install the access panels:

Subtask 24-92-00-860-056-A

B. Put the aircraft back to its initial configuration.
(1) Disconnect the aircraft from the ground (Ref. AMM TASK 12-34-24-869-002).
(2) Retract the slats (Ref. AMM TASK 27-80-00-866-005).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:25:40 UTC