B. Inspection
NOTE: Remove and/or displace passenger cabin sidewalls and insulation blankets as required.
SUBTASK 53-05-02-250-051
(1) Do a High Frequency Eddy Current inspection of the frame inner chord at all fasteners
common to the inner chord and to the inner splice plate between stringers S-9 and S-10.
See Doc. D626A001-DTR, DTR check form 53-40-14-1 for alternative inspections.
The NDI method(s) necessary to accomplish the intent of this inspection is contained in the
737 Nondestructive Test Manual (D6-37239). The inspection procedures are contained in Part
6, Subject 53-11-49.
END OF TASK
TASK 53-05-02-211-826
75. EXTERNAL - DETAILED: BS 540 BULKHEAD
NOTE: This procedure is a scheduled maintenance task.
A. Location Zones
Zone Area
231 Forward Passenger Compartment - Forward Entry Door to Sta 663.75 - Left
232 Forward Passenger Compartment - Forward Entry Door to Sta 663.75 - Right
B. Inspection
SUBTASK 53-05-02-211-026
(1) Do a Detailed inspection of the skin panels at the outer chord from stringers S-9L to S-9R, on
each side of splice 540, for cracks at the frame to skin fastener holes.
See Doc. D626A001-DTR, DTR check form 53-40-14-4 for alternative inspections.
END OF TASK
TASK 53-05-02-211-827
76. EXTERNAL - DETAILED: BS 663 BULKHEAD
NOTE: This procedure is a scheduled maintenance task.
A. Location Zones
Zone Area
231 Forward Passenger Compartment - Forward Entry Door to Sta 663.75 - Left
232 Forward Passenger Compartment - Forward Entry Door to Sta 663.75 - Right
B. Inspection
SUBTASK 53-05-02-211-027
(1) Do a Detailed inspection of the skin on each side of STA 663, from stringers S-8 to S-11, on
both the left and right sides.
See Doc. D626A001-DTR, DTR check form 53-40-15-1 for alternative inspections.
END OF TASK
TASK 53-05-02-250-852
77. INTERNAL - SPECIAL DETAILED: BS 663 BULKHEAD
NOTE: This procedure is a scheduled maintenance task.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-05-02
Page 244
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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