F. Prepare for Center Wing-To-Body Fairing Panel Installation Procedure
SUBTASK 53-51-21-210-003
(1) Make sure that the mating surfaces between the panel and the structure are free from
contamination.
NOTE: Teflon is applied in the mating surface. The teflon is not contamination. It is not
necessary to remove the teflon.
SUBTASK 53-51-21-160-002
(2) Make sure that the teflon mating surface is in a good condition.
(a) If necessary, repair the teflon substrip. Refer to this task: Bonded Teflon Rub Pad Repair,
TASK 51-51-00-340-805.
SUBTASK 53-51-21-210-004
(3) Make sure that the designated electrical bonds for the panel are identified.
(a) Refer to this task: Wing-To-Body Fairing Panel Designated Electrical Bond Visual
Inspection, TASK 53-51-21-211-801.
SUBTASK 53-51-21-390-004
(4) Apply the corrosion preventive compound, C00308, to the flanges on the fairing which touches
the structure.
SUBTASK 53-51-21-390-005
CAUTION
DO NOT APPLY SEALANT BETWEEN THE FAIRING PANELS THAT DO NOT
TOUCH THE FUSELAGE SKIN. IF YOU APPLY SEALANT INCORRECTLY, IT
CAN CAUSE STRUCTURAL DAMAGE TO THE FAIRING PANELS.
(5) Apply sealant, A00247 to the flanges on the fairing which touches the body skin.
SUBTASK 53-51-21-390-006
(6) Apply the corrosion inhibiting compound, G00009, to the area on the structure and the body
skin which touches the fairing.
(a) If necessary, refer to the STANDARD PREVENTIVE MAINTENANCE PROCEDURES,
SUBJECT 51-00-59.
G. Center Wing-To-Body Fairing Panels Installation Procedure
SUBTASK 53-51-21-400-003
(1) If you install access panels, 192CL,192CR or 192DR do this task: Environmental Control
Systems (ECS) Access Door - Installation, TASK 52-48-42-400-801.
SUBTASK 53-51-21-400-004
(2) Install the fasteners that do not have a designated electrical bond on the applicable panel.
(a) Apply primer, C00259 to the hole areas of all fasteners in the structure if necessary.
(b) Let the primer dry.
(c) Put the applicable panel into its position.
1) Zone 192:
a) Install the non-designated electrical bond fasteners for this access panel [27]:
Number Name/Location
192AL Underwing Bolt Cover - Forward
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-51-21
Page 414
D633A101-ILF Oct 15/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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