S 128-040

 (3)  
Use the abrasive paper to remove all signs of the tedlar on the area of the liner to be contacted by the patch.

 NOTE: Tedlar is a protective white layer that is on the liner
____
 during the manufacture process.

 S 168-041
 (4)  
Clean all of the surfaces using denatured alcohol to remove the loose particles.

 S 348-042

 (5)  
Apply epoxy to the back of the patch and to the liner.

 (6)  
Put the patch over the center of the damaged area.

 S 348-044

 (7)  
Apply pressure to the patch until the excess adhesive comes out from the edges.

 S 348-043
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 S 348-045
 (8)  Put the tape around the edges of the patch to hold the patch while the adhesive dries for approximately 30 minutes.
 NOTE: The tape will also protect the edges of the patch.
____
 H. Procedure - The Akro Fireguard System
 S 348-160
 (1)  Akro Fireguard System Instructions.
 (a)  Get the correct Akro Fireguard repair patches for the shape of the damage.
 NOTE: The patch should make a minimum of a 2-inch overlap on
____ the area that is not damaged. For example, the patch dimension that is necessary for a 1.5-inch diameter hole would be 5.5-inch diameter.
 (b)  Use the Akro installation instructions to attach the patch over the center of the damage.
 TASK 25-50-09-308-111
 4. Repairs for Molded Panels, Shrouds, and Panels with Complex Curves
__________________________________________________________________
 A. General
 (1)  The task that follows is a repair for molded panels, shrouds, and panels with complex curves.
 B. Consumable Materials
 (1)  
A00904 Resin - Fiberglass, BMS 8-201, Type II

 (2)  
G01081 Abrasive paper (200 grit or finer)

 (3)  
G00316 Fiberglass Fabric - BMS 9-3, Type H

 (4)  
Solvent

 NOTE: Use one of these:
____
 (a)  
B00316 Naphtha, Aliphatic - TT-N-95, Type I or II

 (b)  
B00775 Isopropyl Alcohol

 C. References
 (1)  
AMM 25-50-01/401, Cargo Compartment Ceiling Lining

 (2)  
AMM 25-50-02/401, Cargo Compartment Sidewall Lining

 (3)  
AMM 25-50-03/401, Cargo Compartment Bulkhead Lining

 (4)  
SRM 51-70-03, Structural Repair Manual

 D. Access
 (1)  Location Zones
 121/122 Forward Cargo Compartment
 153/154 Aft Cargo Compartment

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 E. Procedure - Repair Molded Panels, Shrouds, and Panels with Complex Curves
 S 038-112
 (1)  
Get access behind the panel or remove the panel from the airplane (AMM 25-50-01/401, AMM 25-50-02/401, or AMM 25-50-03/401).

 S 128-113

 (2)  
Lightly rub the damaged area with abrasive paper on the two sides of the panel.

 S 168-114

 (3)  
Clean the damaged area with solvent.

 S 348-115

 (4)  
Do the structural repair on the fiberglass side of the panel (SRM 51-70-03).

 S 348-116

 (5)  
Mix 100 parts by weight of Epocast 50-A resin to 15 parts by weight of Epocast No. 946 hardener (BMS 8-201, Type II).

 S 348-117

 (6)
Do the steps that follow to the front and the back of the panel:

 (a)  
Apply a layer of the mixed adhesive resin to the side of the damaged panel that shows in the cargo compartment.

 (b)  
Apply a layer of BMS 9-3, Type H, fiberglass fabric on the layer of adhesive resin.
　
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