General Repair Method of Damaged Protection Panels at FR24A

TASK 25-50-00-340-019-A
General Repair Method of Damaged Protection Panels at FR24A

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

ZONE: 130

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 2M (6 FT)
No specific	1	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.13SBB1)	Honeycomb core-Aramide - hexagonal 1/8 - 3.0 -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
130	FWD CARGO COMPT AFT BULKHEAD OF AVNCS COMPT TO FWD PRESSURE BULKHEAD OF WING CENTER BOX

D. 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 25-50-00-200-024-A	Cargo Compartment Linings with Honeycomb Core - General Repair/Protection Information
TASK 25-50-00-340-004-A	Patch and Filler Repair Method (Damage Not Through) - All Cargo Compartment Linings with Honeycomb Core
TASK 25-50-00-340-017-A	Repair of the Delaminated Decompression Protection Panels of the Forward Cargo Compartment Partition Wall at FR24A
TASK 25-50-00-340-018-A	Temporary Repair of the Delaminated Decompression Protection Panels of the Forward Cargo Compartment Partition Wall FR24A
TASK 25-54-11-000-001-A	Removal of the Forward Cargo-Compartment Partition FR24A
TASK 25-54-11-400-001-A	Installation of the Forward Cargo-Compartment Partition FR24A
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump

3. Job Set-up
Subtask 25-50-00-861-057-A

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

Subtask 25-50-00-010-116-A

B. Get Access
(1) Open the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at the opening of the forward cargo-compartment door.
(3) Set the light switch to on.
(4) Put the WARNING NOTICE(S) on the control panel of the forward cargo-loading system to tell persons not to use it.

Subtask 25-50-00-020-064-A

C. Removal of the Delaminated Protection Panels
(1) Remove the forward cargo-compartment partition at FR24A (Ref. AMM TASK 25-54-11-000-001).

4. Procedure
Subtask 25-50-00-350-054-A

A. Repair of the Protection Panel with Honeycomb Core at FR24A
(1) If there is only delamination, make a permanent repair of the protection panels (Ref. AMM TASK 25-50-00-340-017) or make a temporary repair as an alternative (Ref. AMM TASK 25-50-00-340-018).
(2) If there is a missing core, the damaged area can be repaired:
(a) Refer to (Ref. AMM TASK 25-50-00-340-004). You must obey the damage limits included in (Ref. AMM TASK 25-50-00-200-024).

(b) Do the steps that follow if the damaged area is no more than 50% of the panel:
1 Carefully remove the damaged material from the protection panel.
2 Remove the damaged honeycomb (core) from the panel.
3 Deburr the edges.
4 Make sure that the rear layer is not damaged.
5 Smooth the damaged area with emery cloth grade 80-120.
6 Clean the repair area with cleaning agent Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
7 Cut a block of honeycomb 13SBB1Honeycomb core-Aramide - hexagonal 1/8 - 3.0 - in the size of missing core, height 8,8 mm.
8 Bond the block of honeycomb on the backside layer of the panel.
9 Bond the top layer on the top side of the block of honeycomb.
10 Fill the panel edge with filler (Ref. AMM TASK 25-50-00-340-004).

5. Close-up
Subtask 25-50-00-420-065-A

A. Installation of the Protection Panels
(1) Install the forward cargo-compartment partition at FR24A (Ref. AMM TASK 25-54-11-400-001).

Subtask 25-50-00-410-109-A

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Set the light switch to off.
(3) Close the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).
(4) Remove the WARNING NOTICE(S) from the control panel of the forward cargo-loading system.
(5) Remove the access platform(s).

Subtask 25-50-00-862-057-A

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

[Rev.9 from 2019] 2026.04.02 06:14:23 UTC