Installation of the Door - Refuel/Defuel Control Panel

TASK 57-41-37-400-001-A
Installation of the Door - Refuel/Defuel Control Panel

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

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	1	ACCESS PLATFORM 3M (10 FT)
No specific	AR	WARNING NOTICE(S)
98D27803500001	1	LOCKING TOOL ZERO POS

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AEA1)	Polysulfide Sealant-Low Adhesion Brushable -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.12ACC1)	Corrosion Preventive Compound-Heavy Duty Soft Film -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Referenced Information

REFERENCE	DESIGNATION
TASK 28-25-54-400-001-A	Installation of the Floodlight
Door - Refuel/Defuel Control Panel

3. Job Set-up
Subtask 57-41-37-941-052-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is installed on the flap/slat control lever.
(2) Make sure that the WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate the flaps or slats.
(3) Make sure that the safety barriers are in position.

Subtask 57-41-37-860-061-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 3M (10 FT) is in position below wing leading edge, zone 622.

Subtask 57-41-37-865-053-A ** ON A/C NOT FOR ALL

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	ELEC/REFLNG/NORM	2PR	S27
122VU	ELEC/REFLNG/ON/BAT	1PR	U28

4. Procedure
Subtask 57-41-37-420-053-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean the component interface and/or the adjacent area.
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.
(4) Apply a layer of Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to:

the shanks of the bolts (4)
the mating surfaces of the door hinges and the structure.

Subtask 57-41-37-420-052-A ** ON A/C NOT FOR ALL

B. Installation of the Door
(1) Put the door (3) in position on the door frame.
(2) Install the bolts (4).
(3) Install the floodlight 32QU (Ref. AMM TASK 28-25-54-400-001).
(4) Slowly close the door (3) and make sure that the refuel/defuel lighting goes off. If not, adjust the micro-switch.
(5) To adjust the micro-switch (2), do these steps:
(a) Loosen the fasteners (5) and remove the panel (6).
(b) Loosen the bolts (1).
(c) Adjust the micro-switch so that the lighting of the refuel/defuel panel is off before the door (3) is closed.
(d) Start closing the door (3) and when almost closed, make sure that the refuel/defuel lighting is off.
(e) When the door (3) operates the light correctly, make sure that the bolts (1) are fully tightened.
(6) Apply a layer of Corrosion Preventive Compound-Heavy Duty Soft Film - (Material No.12ACC1) to the head of the bolts (1) and (4).
(7) Install the panel (6) and tighten the fasteners (5).

Subtask 57-41-37-720-050-A ** ON A/C NOT FOR ALL

C. Make sure that the door (3) operates correctly.

5. Close-up
Subtask 57-41-37-410-050-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) Close the door 622KB.

Subtask 57-41-37-865-054-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	ELEC/REFLNG/NORM	2PR	S27
122VU	ELEC/REFLNG/ON/BAT	1PR	U28

Subtask 57-41-37-942-051-A ** ON A/C NOT FOR ALL

C. Removal of Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the safety barriers.
(3) Remove the access platform(s).
(4) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 02:13:10 UTC