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时间:2011-04-09 10:31来源:蓝天飞行翻译 作者:航空
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 B. Consumable Materials
 (1)  
B00137 Abrasive paper (120 grit or finer)

 (2)  
G00033 Cheesecloth, BMS 15-5

 (3)  
Pads - Steel wool

 (4)  
Solvent


 NOTE: You can use one of these solvents:
____
 (a)  
B00111 Freon TF

 (b)  
B00093 Tetrachloroethylene O-T-236

 (c)  
B00090 1.1.1 Trichloroethane MIL-T-81533A


 (5)  Tape - Glass Cloth, Flame-Resistant
 NOTE: You can use one of these tapes:
____
 (a)  G00348 Permacel P-621
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A
747-400 MAINTENANCE MANUAL
 (b)  G01355 3M YR-367 FR
 C. Access
 (1)  Location Zones
 261 Passenger Cabin Fourth Door to Sta 2040, Left
 262 Passenger Cabin Fourth Door to Sta 2040, Right
 271 Passenger Cabin Sta 2040 to Sta 2360, Left
 272 Passenger Cabin Sta 2040 to Sta 2360, Right

 D. Procedure
 S 118-007
 (1)  
Clean the surface of the cargo lining with a cheesecloth or wiper that is moist with the solvent.

 S 348-008

 (2)  
Use the abrasive paper or the steel wool pad to lightly rub the surface of the cargo lining.


 NOTE: The surface of the cargo lining must be rubbed until it is
____ not glossy. The white Tedlar surface on some of the cargo linings must be removed until you see the glass fabric laminations.
 S 118-009
 (3)  Clean the surface of the cargo lining with a cheesecloth or wiper that is moist with the solvent.
 NOTE: A clean surface is necessary for the tape to bond correctly
____
 to the cargo lining.

 S 348-010
 (4)  Install the tape on the top of the damaged area.
 NOTE: The tape must extend equally around the damaged area by no
____
 less than 2 inches.

 S 348-011
 (5)  Make sure the tape bonds fully to the cargo lining.
 NOTE:____There must be no air bubbles below the tape. The tape
 must be flat on the surface of the cargo lining.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
CARGO LINING


CARGO LINING SPLICE AREA (VISIBLE SIDE)
DO NOT RUB THROUGH THE TEDLAR LAYER OR

RUB THE GLASS FABRIC LAMINATION UNTIL IT IS THROUGH THE GLASS FABRIC LAMINATION WHICH IS NOT GLOSSY, OR IF IT IS APPLICABLE, RUB ADJACENT TO OR ON THE SURFACE OF THE PATCH. THROUGH THE TEDLAR LAYER TO MAKE A BETTER
BOND SURFACE FOR THE PATCH OR DOUBLER.
REMOVE THE SHARP CORNERS OF THE PATCH TO MAKE A SMOOTH SURFACE BETWEEN PATCH-

THE CLEARANCE BETWEEN THE PLUG PATCH AND ADHESIVE-REPAIR AREA. THE CARGO LINING SHOULD NOT BE MORE THAN 0.03-INCH.
Permanent Repair of Rigid Fiberglass-Reinforced Cargo Linings with the Installation of a Patch or Doubler Figure 801
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 TASK 25-59-00-308-012
 4.  Rigid Cargo Lining Permanent Repairs (Fig. 801)____________________________________
 A. General
 (1)  
This procedure gives the instructions to permanently repair the rigid cargo linings. This procedure uses a patch or doubler, and adhesives to repair the cargo lining. The patch or doubler must be made from the same material (Class, Grade, and Type) as the cargo lining. The procedure has these parts:

 (a)  
Prepare the cargo lining


 
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