TASK 53-51-21-211-801
3. Wing-To-Body Fairing Panel Designated Electrical Bond Visual Inspection
(Figure 601)
A. General
(1) This task covers the visual inspection of the designated electrical bonds for the panels located
in the Wing-To-Body Fairing section.
B. Consumable Materials
Reference Description Specification
C00767 Coating - Anti-Static Coating BMS10-21 Type III
C00862 Coating - Chemical Conversion - Bonderite
M-CR 600 Aero (Formerly Alodine 600)
C. Location Zones
Zone Area
190 Subzone - Wing-to-Body Fairing
191 Lower Wing-To-Body Fairing - Forward of Wing Box
192 Lower Wing-To-Body Fairing - Under Wing Box
193 Lower Wing-To-Body Fairing - Wheel Well
194 Lower Wing-To-Body Fairing - Aft of Wheel Well
195 Above Wing, Wing-To-Body Fairing - Left
196 Above Wing, Wing-To-Body Fairing - Right
D. Visually Examine the Designated Electrical Bonds on the Wing-To-Body Fairing Panels
SUBTASK 53-51-21-211-001
(1) Identify the fastener locations on each panel that an electrical bond is necessary to identify
fastener locations for electrical bonds:
NOTE: There are usually four fasteners per panel with electrical bonds.
(a) Examine the area around each fastener hole to identify electrical bond locations.
1) Locations that have an electrical bond have an abraded area in the panel around
the fastener hole (Figure 601).
2) It is recommended to examine the panel at the corners first. Usually, the locations
are at or near the panel corners, but panel repairs can change the locations of the
electrical bonds.
3) It is necessary to examine all the fastener holes to identify locations with an
electrical bond.
SUBTASK 53-51-21-300-001
(2) Do these steps if the electrical bond locations are not identified after the visual inspection:
(a) Remove one fastener and one dimpled washer, if installed, from the panel.
NOTE: There are usually four fasteners per panel with dimpled washers.
(b) Examine the area around the fastener hole:
1) Locations that have an electrical bond have an abraded area in the panel around
the fastener hole (Figure 601).
2) It is recommended to examine the panel at the corners first. Usually, the locations
are at or near the panel corners, but panel repairs can change the locations of the
electrical bonds.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
53-51-21
Page 606
D633A101-ILF Feb 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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