(d)  
G01338 Tape - 3M 367-FR (3 inches wide)

 (4)
Use the materials that follow for the Thermion Repair System:

 (a)  
Patch Kits - Thermion Heat Resistant, P/N 9290-1 thru -7 Supplier: Thermion Inc.

 (b)  
A01016 Epoxy - Master Bond high temperature, EP65HT-1

 D. References
 (1)  
AMM 25-52-01/401, Containerized Cargo Compartment Ceiling and Sidewall Linings

 (2)  
AMM 25-55-02/401, Bulk Cargo Compartment Ceiling and Sidewall Linings

 E. Access
 (1)  Location Zone
 100 Lower Half of Fuselage

 F. Procedure - Repair the Cargo Liners with Screws and a Bonded Patch
 S 348-079
 (1)  Make a fiberglass patch with the same thickness as the liner being required.
 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.
 S 128-080
 (2)  Rub the back of the patch with abrasive paper.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 25-52-01
 ALL  ú ú 05A Page 805 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 168-082
 (3)  Clean all of the surfaces using denatured alcohol to remove the
 loose particles.
 S 348-083
 (4)  Apply adhesive to the back of the patch.
 S 348-084
 (5)  Put the patch over the center of the damaged area.
 S 348-085
 (6)  Apply pressure to the patch to make sure there is a good bond.
 S 438-096
 (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 348-086
 (8)  Apply tape on the heads of the screws to keep them installed through the fiberglass liner and patch.
 S 438-100
 WARNING:_______SEAL THE CARGO COMPARTMENT WITH THE LINING. OBEY THE INSTRUCTIONS IN THE SPECIFIED PROCEDURE WHEN YOU INSTALL THE LINING. IF YOU INSTALL THE LINING INCORRECTLY, THE FIRE EXTINGUISHING AGENT OR SMOKE CAN GET INTO THE PASSENGER COMPARTMENT DURING A FIRE.
 (9)  Install the cargo liner if you removed it to do the repair (AMM 25-52-01/401, AMM 25-55-02/401).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 25-52-01
 ALL  ú ú 03A Page 806 ú Oct 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 G. Procedure - The Thermion Repair System
 S 348-088
 (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.
 S 128-089
 (2)  
Rub the back of the patch with abrasive paper to remove the gloss being careful not to rub the impregnated scrim area.

 S 128-090

 (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 168-091
 (4)  
Clean all of the surfaces using denatured alcohol to remove the loose particles.

 (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 348-094

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

 S 348-092
 S 348-093
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
中國航空網(wǎng) m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 EQUIPMENT/FURNISHINGS 1(121)