TASK 53-05-02-250-848
71. INTERNAL - SPECIAL DETAILED: STIFFENER ATTACHMENT TO FLOOR BEAM, STA 727
NOTE: This procedure is a scheduled maintenance task.
A. Location Zones
Zone Area
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station 727.00 - Left
134 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station 727.00 - Right
B. Inspection
NOTE: Remove and/or displace aft cargo forward bulkhead, ceiling, sidewall panels and insulation
blankets as required to perform the inspection.
SUBTASK 53-05-02-250-048
(1) Do a High Frequency Eddy Current inspection of the fastener row connecting the pressure
bulkhead stiffener to the stiffener attachment fitting that joins the stiffener to the floor beam (at
five locations) around the fastener/collar on the outboard side at LBL and RBL 45 and WL
202.6.
See Doc. D626A001-DTR, DTR check form 53-40-10-1 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 53–11–29.
END OF TASK
TASK 53-05-02-250-849
72. INTERNAL - SPECIAL DETAILED: STRINGER 18 STRAP SIDE OF BODY
NOTE: This procedure is a scheduled maintenance task.
A. Location Zones
Zone Area
133 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station 727.00 - Left
134 Main Landing Gear Wheel Well, Body Station 663.75 to Body Station 727.00 - Right
141 Aft Cargo Compartment - Left
142 Aft Cargo Compartment - Right
B. Access Panels
Number Name/Location
195CL Wing To Body Fairing - Left Side
195CR Wing To Body Fairings - Right Side
C. Inspection
SUBTASK 53-05-02-010-137
(1) Open this access panel on the Left side:
Number Name/Location
195CL Wing To Body Fairing - Left Side
Open this access panel on the Right side:
Number Name/Location
195CR Wing To Body Fairings - Right Side
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-05-02
Page 242
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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