Replacement of the Entry Light Cover

TASK 25-23-42-960-001-A
Replacement of the Entry Light Cover

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	CUTTER - THIN BLADE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05FCE1)	Polyurethane Adhesive-Equipment & Furnishing Two parts -
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-23-42-000-001-A	Removal of the Ceiling Panels - Forward Utility Area
TASK 25-23-42-000-002-A	Removal of the Ceiling Panels - Aft Utility Area
TASK 25-23-42-400-001-A	Installation of the Ceiling Panels - Forward Utility Area
TASK 25-23-42-400-002-A	Installation of the Ceiling Panels - Aft Utility Area
Entry Cover

3. Job Set-up
Subtask 25-23-42-861-053-A

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 25-23-42-010-057-A

B. Remove the related ceiling panel, (Ref. AMM TASK 25-23-42-000-001) or (Ref. AMM TASK 25-23-42-000-002).

4. Procedure
Subtask 25-23-42-960-050-A

A. Replacement of the Entry Light Cover

Entry Cover

NOTE: The contour of the entry light cover has space on each side to let the cover engage in the ceiling panel. The cover is attached to the panel with adhesive to prevent lateral movement.

(1) Carefully remove all adhesive (3) with a CUTTER - THIN BLADE.

NOTE: It is also possible to apply heat to the adhesive with a light source and then remove the adhesive by hand.

(2) Disengage the entry light cover (2) from the ceiling panel (1).
(3) Remove the remaining adhesive (3) from the ceiling panel (1) with a CUTTER - THIN BLADE.
(4) Clean the ceiling panel (1) with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) .
(5) Carefully engage the new entry light cover (2) in the ceiling panel (1).
(6) Apply Polyurethane Adhesive-Equipment & Furnishing Two parts - (Material No.05FCE1) (3) at an interval of 50mm (2 in.) around the contour of the entry light cover (2) and attach the cover to the ceiling panel (1).
(7) Let the adhesive (3) fully cure.

5. Close-up
Subtask 25-23-42-410-052-A

A. Install the related ceiling panel, (Ref. AMM TASK 25-23-42-400-001) or (Ref. AMM TASK 25-23-42-400-002).

Subtask 25-23-42-862-052-A

B. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:31:07 UTC