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Page 2 OCT 01/00 BOEING PROPRIETORY -Copyright (c) -UnpublishedWork -See title page for details.
CORROSION PREVENTION MANUAL
FLAPS
INBOARD FLAP BALLSCREW
INBOARD TRANSMISSION SHOWN
(OUTBOARD TRANSMISSION OPPOSITE)
DETAIL I
A-A
Ballscrew Installation for the Inboard TE Flaps
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CORROSION PREVENTION MANUAL
CHAPTER
28
FUEL
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CORROSION PREVENTION MANUAL FUEL
TERMINATING
PREVENTION ACTION
AREA PROBLEM VOLUME 2 (IF ANY)
Fuel Shutoff and Corrosion at body joints and water entry into actuators 28-20-01 SB 28A0018
Crossfeed Valve
Actuators
Fuel Temperature Corrosion at housing connections 28-40-01
Bulbs
SPECIFIC CORROSION PROBLEMS -FUEL
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CORROSION PREVENTION MANUAL
FUEL FEED AND DEFUEL SYSTEM
1. General
A. This system includes tanks, valves, actuators, pumps, and fuel lines. This
system is used to distribute fuel among various tanks of the airplane, and
to remove fuel from the airplane.
B. Corrosion can occur on the exterior of the fuel shutoff and crossfeed valve
actuators, at body joints and fastener heads. If this corrosion gets in past
the 0-rings, contamination and water can cause malfunctions of the actua-tors.
2. Corrosion Prevention
A. Make regular checks of the actuators for corrosion at body joints and fas-tener heads. If you find corrosion, replace the defective actuators per SB
28A0018.
B. Corrosion inhibiting compounds can be used on fuel vapor barriers.
C. Improved Corrosion Protection
(1)Fuel Shutoff and Crossfeed Actuators -- Airplanes line number 207 and on 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 防腐手册 CORROSION PREVENTION MANUAL(7)
