Replacement of the Light Screen

TASK 25-23-48-960-001-A
Replacement of the Light Screen

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.06CMD9)	Silicone Adhesive Sealant-General Purpose One part legacy
(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 25-23-42-960-001-A	Replacement of the Entry Light Cover
TASK 25-23-48-000-001-A	Removal of the Cove Light Panel
TASK 25-23-48-400-001-A	Installation of the Cove Light Panel
Light Screen

3. Job Set-up
Subtask 25-23-48-861-052-A

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

Subtask 25-23-48-010-051-A

B. Remove the related cove light panel (Ref. AMM TASK 25-23-48-000-001).

4. Procedure
Subtask 25-23-48-960-050-A

A. Replacement of the Light Screen

Light Screen

NOTE: The procedure for the replacement of the entry light covers is given in (Ref. AMM TASK 25-23-42-960-001).

NOTE: The contour of the light screen has space on each side to let the screen engage in the cove light panel. The light screen 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 light screen (2) from the cove light panel (1).
(3) Remove the remaining adhesive (3) from the cove light panel (1) with a CUTTER - THIN BLADE.
(4) Clean the cove light panel (1) with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) .
(5) Carefully engage the new light screen (2) in the cove light panel (1).
(6) Apply Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) (3) at an interval of 50mm (2 in.) around the contour of the light screen (2) and attach the light screen to the cove light panel (1).
(7) Let the adhesive (3) fully cure.

5. Close-up
Subtask 25-23-48-410-050-A

A. Install the cove light panel (Ref. AMM TASK 25-23-48-400-001).

Subtask 25-23-48-862-052-A

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

[Rev.10 from 2021] 2026.03.31 23:31:59 UTC