FUSELAGE - CORROSION PREVENTION
1. General
Refer to the applicable section in the Table 201 for corrosion prevention instructions for the different areas
of the fuselage.
Table 201/53-00-37-993-801 Specific Corrosion Problems - Fuselage
AREA PROBLEM INDEX
Crown Frames,
Stringers and Skin
Corrosion of frames, stringers and interior skin surfaces. 53-11-37
Lower Lobe Structure Corrosion of frames, stringers and interior skin surfaces. 53-11-37
Corrosion of lower lobe doublers and lower lobe skins between BS 360 to
540 and BS 727 to 1016.
Galleys and Lavatories Corrosion of structure under galleys and lavatories due to spillage. 53-11-37
Corrosion of partition support on cabin floor between BS 1006 and 1030
because of soaked foam dams.
53-11-37
Main Wheel Well and
Keel Beam
Corrosion on surfaces inside wheel well because of air contaminants and
runway splash.
53-11-37
Stress corrosion on inboard lug of main landing gear trunnion support beam
and the BS 706 frame lug.
Stress corrosion cracks on horizontal integral ribs on BS 685 and 706
frames.
Stress corrosion cracks in keel beam lower tee chords.
Stress corrosion of keel beam inboard splice tees.
Nose Gear Wheel Well Corrosion on the surfaces inside the wheel well because of air
contaminants and runway splash.
53-11-37
Stress corrosion on lock support fittings.
Stress corrosion cracking of the actuator support fittings.
Corrosion of the exterior surfaces.
Doorway Openings Corrosion on the structure around door openings. 53-11-37
Stress corrosion of aft airstair door stop fittings.
Aft Pressure Bulkhead Corrosion on the aft face of the bulkhead. 53-11-37
Corrosion on the lower 10 inches of the forward face of the bulkhead
because of clogged drain hole.
Upper Lobe Frames,
Stringers and Skin
Cracks from fastener holes on Stringer 17 left and right. 53-11-37
Broken attach bolt on BS 1088 bulkhead
Pillow blankets that trapped moisture.
Wing-To-Body Fairing
Cavity
Corrosion on the door and door hinge. 53-51-37
Corrosion of the under fairing skin.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-00-37
Page 201
D633A101-ILF Oct 15/2014
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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