Stainless Steel-Patch Repair Method (Damage Not Through) - All Cargo Compartment Linings with Honeycomb Core

TASK 25-50-00-340-013-A
Stainless Steel-Patch Repair Method (Damage Not Through) - All Cargo Compartment Linings with Honeycomb Core

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

ZONE: 130
ZONE: 150
ZONE: 160

1. Reason for the Job
Refer to the AMM task 25-50-00-200-024
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	CLOTH - ABRASIVE (GRADE 120-180)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05EML7)	Epoxy Adhesive-- - Legacy 3
(Material No.05NAH2)	Adhesive Transfer Tape-- Very High Temp. - Very High Adhesion -
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14SBA1)	Textile-Lint free Cotton -
No specific	sheet of Stainless Steel 0.6 mm (0.024 in.) to 2 mm (0.08 in.)

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
150	AFT CARGO COMPARTMENT FWD PRESS BULKHEAD TO AFT BULKHEAD OF AFT CARGO COMPARTMENT
160	BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT

D. Referenced Information

REFERENCE	DESIGNATION
TASK 25-50-00-200-024-A	Cargo Compartment Linings with Honeycomb Core - General Repair/Protection Information
TASK 25-50-00-370-001-A	Refurbishment of Cargo Compartment Linings
CC Honeycomb Linings, Stainless Steel Patch - Damage Not Through

3. Job Set-up
Subtask 25-50-00-010-104-A

A. Get Access
(Ref. AMM TASK 25-50-00-200-024)

4. Procedure
Subtask 25-50-00-220-055-A

A. Identification of the Damage Area
(Ref. AMM TASK 25-50-00-200-024)
(1) If the damaged panel is painted (refurbished in accordance to (Ref. AMM TASK 25-50-00-370-001))), remove the paint in the affected area before applying the repair procedure.
(2) To identify the surface of the damaged panel use Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) . If the panel is painted, the applied paint dissolves.
(3) If the length of a damaged area is more than 25 mm (0.98 in.):

The minimum distance to another damaged area or repaired area in the same panel is 50 mm (1.97 in.)
If the distance to another damaged area is less than 50 mm (1.97 in.), both damaged areas must be considered as a single damage.

(4) Types of repair patch:
(a) You can use the subsequent repair patches to do the repair.

A sheet of Stainless Steel 0.6 mm (0.024 in.) to 2 mm (0.08 in.)
with
or
Epoxy Adhesive-- - Legacy 3 (Material No.05EML7)
or
Adhesive Transfer Tape-- Very High Temp. - Very High Adhesion - (Material No.05NAH2) .

Subtask 25-50-00-340-060-A

B. Repair of the Panel

CC Honeycomb Linings, Stainless Steel Patch - Damage Not Through

NOTE: Do not use the patch to overlap another repair.

(1) Remove the damaged area from the panel.
(2) Make the repair area smooth and deburr it with a CLOTH - ABRASIVE (GRADE 120-180).
(3) Clean the repair area with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Make sure that the repair area is dry.
(5) Cut a patch to the applicable dimensions.

NOTE: The repair patch must be 38 mm (1.5 in.) larger than the damaged area in all directions.

NOTE: The overlap of patches is not permitted.

(6) Deburr the edges of the patch with a CLOTH - ABRASIVE (GRADE 120-180).
(7) Apply:

Epoxy Adhesive-- - Legacy 3 (Material No.05EML7)
or Adhesive Transfer Tape-- Very High Temp. - Very High Adhesion - (Material No.05NAH2)
on one side of the repair patch.

(8) Put the repair patch over the damaged area and push it into position.
(9) Let the repair dry.

NOTE: Obey the manufacturers instructions.

(10) Follow the curing recommendations of the selected adhesive.

5. Close-up
Subtask 25-50-00-410-097-A

A. Close Access
(Ref. AMM TASK 25-50-00-200-024)

[Rev.10 from 2021] 2026.04.01 06:24:25 UTC