SUBTASK 53-05-02-211-024
(1) Do a Detailed inspection of the stringers S-11 to S-13 at a distance of 10 inches forward and
aft of STA 663.
See Doc. D626A001-DTR, DTR check form 53-40-07-2 for alternative inspections.
END OF TASK
TASK 53-05-02-211-825
70. INTERNAL - DETAILED: KEEL BEAM CHORDS, STIFFENERS AND SPLICE
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
139 Keel Beam, (Part) Body Station 540.00 to Body Station 727.00
192 Lower Wing-To-Body Fairing - Under Wing Box
193 Lower Wing-To-Body Fairing - Wheel Well
B. Access Panels
Number Name/Location
192CL ECS Access Door
192CR ECS Access Door
C. Inspection
SUBTASK 53-05-02-010-019
(1) Open this access panel on the Left side:
Number Name/Location
192CL ECS Access Door
Open this access panel on the Right side:
Number Name/Location
192CR ECS Access Door
SUBTASK 53-05-02-211-025
(2) Do a Detailed inspection of the keel beam side panel webs from STA 540 to STA 663.
See Doc. D626A001-DTR, DTR check form 53-40-08-1 for alternative inspections.
SUBTASK 53-05-02-410-017
(3) Close this access panel on the Left side:
Number Name/Location
192CL ECS Access Door
Close this access panel on the Right side:
Number Name/Location
192CR ECS Access Door
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-05-02
Page 241
D633A101-ILF Oct 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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