(a) Chlorinated cleaning agents will cause damage to Graphite/Aramid epoxy structures.
(5)
1,1,1-Trichloroethane is one of the solvents approved to clean composite components.
(a) Do not submerge parts in the solvent or permit the part to soak in solvent or you may cause damage to occur.
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(b) Use 1,1,1-Trichloroethane only as a wipe solvent.
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THRUST REVERSER - APPROVED REPAIRS
__________________________________
1. General
_______
A. This procedure gives instructions to repair these areas:
(1)
The insulation coating that is not metal
(2)
The fire barrier material on the strut firewall
(3)
The inside areas of the fan duct cowl
(4)
The thrust reverser.
B.
These procedures are limited to small, not-highly-contoured areas. No flight delay is necessary for cure of the insulative coating systems, or for precure of the repair plug material used in the procedures.
C.
These procedures include minor and major damage repair. You can do all procedures on the lower 270 degree arc of the fan duct cowl and thrust reverser if it is necessary.
D.
The repair of the upper 90 degrees arc which includes the strut firewall is in the major damage procedure.
E.
These are the procedure titles, and the applicable areas for the repair: Procedure Title_______________ Applicable Area
Repair of the Slight Abrasions/ Lower 270° Arc Only, Except Minor Damage Lower Bifurcation
Repair of the Scratches, Cuts and Lower 270° Arc Only Except Minor Damage down to Base Metal Lower Bifurcation
Repair of Major Damage and All Areas
Insulation that is Gone -Molded Patch Method
TASK 78-31-01-308-001-C00
2. Fan Duct Cowl and Thrust Reverser Fire Insulation Repair
________________________________________________________
A. Equipment
(1)
Shore A Durometer
(2)
Brush, Soft Bristle
B.
Consumable Materials
NOTE: Operators can order pre-packaged kits that include materials
____ necessary to repair the thrust reverser insulative coating. Refer to Boeing Service Letter 737-SL-78-047 for more information on these kits.
(1) A00322 Abrasive Paper, Aluminum Oxide,
180, 240 and 320 grit (AMM 20-30-51/201))
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(2)
G00034 Cheesecloth - New, Clean, Dry, Lint Free, BMS 15-5 (AMM 20-30-51/201)
(3)
B00148 Solvent, Methyl Ethyl Ketone (AMM 20-30-31/201)
(4)
A00309 Dibutyl Tin Dilaurate (Thermolyte-12) (AMM 20-30-41/201)
(5)
A00964 Chemical and Solvent Resistant Finish, BMS 10-11, Type II, (QPL)
(6)
A01045 Insulation Coating, BMS 10-102, Type I, Class 1, Grade 28 (AMM 20-30-11/201)
(7)
Insulation Coating, BMS 10-102, Type I, Class 1, Grade 25 (AMM 20-30-11/201)
(8) 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：737-300 400 500 AMM 飞机维护手册 EXHAUST(89)
