D. Location Zones
Zone Area
100 Lower Half of Fuselage
200 Upper Half of Fuselage
E. Corrosion Prevention
SUBTASK 53-11-37-610-020
(1) Periodically examine galley and lavatory areas to detect early stages of corrosion. Skin bulges,
missing fasteners or white powdery deposits are evidences of the existence of corrosion which
should alert operators that some corrective action is required. A corrosion prevention program
should be initiated to prevent the accumulation of moisture in order to minimize the occurrence
of corrosion.
SUBTASK 53-11-37-610-021
(2) Where extensive corrosion exists (noticeable skin bulges, missing fasteners, or large amounts
of white deposits) refer to SRM 737-678 for details of corrosion removal.
SUBTASK 53-11-37-610-022
WARNING
DO NOT APPLY THE CORROSION-INHIBITING COMPOUNDS IN THE AREAS
THAT HAVE OXYGEN SYSTEM COMPONENTS. THE MIXTURE OF
CORROSION-INHIBITING COMPOUNDS, AND OXYGEN CAN CAUSE AN
EXPLOSION. AN EXPLOSION CAN CAUSE INJURIES TO PERSONS, AND
DAMAGE TO EQUIPMENT.
CAUTION
DO NOT INSTALL THE INSULATION BLANKETS THAT ARE SOAKED WITH
CORROSION INHIBITING COMPOUNDS. INSULATION BLANKETS
INADVERTENTLY SPATTERED WITH THE CORROSION INHIBITING
COMPOUNDS SHOULD BE ALLOWED TO DRY BEFORE INSTALLATION.
SOAKED INSULATION BLANKETS ARE POTENTIAL FIRE HAZARDS. THEY
CAN CAUSE DAMAGE TO THE AIRPLANE.
(3) For details of application of corrosion inhibiting compound, G00009, refer to STANDARD
PREVENTIVE MAINTENANCE PROCEDURES, SUBJECT 51-00-59.
SUBTASK 53-11-37-610-023
(4) For minor corrosion to minimize the down time of the airplane, the corrosion products should
be cleared off, followed by an application of a corrosion inhibiting compound into the affected
area to retard the corrosion process. The finish system should be restored at the next
maintenance opportunity (STANDARD PREVENTIVE MAINTENANCE PROCEDURES,
SUBJECT 51-00-59).
NOTE: The treatment of the internal structure described above should be made at the first
opportunity the area is exposed. Location of the area should be noted and monitored
from the outside every 3 months for visual indication of corrosion progression. Any
noticeable skin bulges would require scheduling corrosion removal outlined in
Structural Repair Manual.
SUBTASK 53-11-37-610-024
(5) The treatment of seat tracks in the galleys arid lavatories should be accomplished per
Figure 203.
SUBTASK 53-11-37-610-025
(6) Prevention Treatment
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-11-37
Page 215
D633A101-ILF Oct 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
