S 348-065
(6)
Apply pressure to the patch to make sure there is a good bond.
S 348-066
(7)
Attach the patch permanently with screws at approximately 1.25 inches apart and 0.50 inch from the edges of the patch.
NOTE: Make sure you put the screws apart such that the screws do
____
not interfere with underlying structure.
S 348-067
(8) Apply tape on the heads of the screws to keep them installed through the fiberglass liner and patch.
G. Procedure - The Thermion Repair System
S 348-068
(1) Get the correct Thermion patch kit 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.
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S 128-069
(2)
Rub the back of the patch with abrasive paper to remove the gloss being careful not to rub the impregnated scrim area.
S 128-070
(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 168-071
(4)
Clean all of the surfaces using denatured alcohol to remove the loose particles.
S 348-072
(5)
Apply epoxy to the back of the patch and to the liner.
S 348-073
(6)
Put the patch over the center of the damaged area.
S 348-074
(7)
Apply pressure to the patch until the excess adhesive comes out from the edges.
S 348-075
(8)
Put 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 348-097
(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.
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737-300/400/500MAINTENANCE MANUAL
(b) Use the Akro installation instructions to attach the patch over the center of the damage.
TASK 25-52-60-308-079
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 Fabric, Fiberglass - 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 25-52-65/401, Cargo Compartment Ceiling Lining
(2)
AMM 25-52-73/401, Cargo Compartment Sidewall Lining
(3)
AMM 25-52-81/401, Cargo Compartment Bulkhead Lining
(4)
SRM 51-70-06, Structural Repair Manual
D. Access
(1) Location Zones
208 Forward Cargo Compartment
218 Aft Cargo Compartment
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