S 374-036
(10)
Apply the corrosion inhibitive compound, BMS 3-23, to the area on the structure and the body skin which touches the fairing (AMM 51-24-13/701).
S 424-037
(11)
Install the fasteners which attach the fairing to the structure.
NOTE: Make sure you install the stainless steel bolts and
____ dimpled washers at the same locations on the fairing panel as they were prior to removal of the panels. Installing different hardware in these locations may result in unacceptable electrical bonding.
S 434-042
(12) Connect or install the equipment to the fairing and do an operational test if the equipment was disconnected or removed.
(a) Refer to the applicable chapter for the instructions to connect, install or do an operational test of the equipment.
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A
747-400 MAINTENANCE MANUAL
WING-TO-BODY FAIRING - ADJUSTMENT/TEST
______________________________________
1. General_______
A. This procedure has one task. The task gives instructions to adjust the wing-to-body fairing.
B. You must adjust the seal clearance between the wing skin and the seal edge which is shown in (Fig.501). You must do this to prevent possible damage to the fillet blade seal below the wing.
C. Two procedures are used to measure the seal clearances. The first procedure measures the seal clearances with the fairing panel installed. The second procedure measures the seal clearances with the fairing panel removed.
TASK 53-51-01-825-001
2. Wing-to-Body Fairing - Adjustment (Fig. 501)_________________________________
A. References
(1)
AMM 53-51-01/401, Wing-to-Body Fairing
(2)
AIPC 53-51-01 Fig. 1
B. Access
(1) Location Zones
191 Wing-to-Body Fairing, Left
192 Wing-to Body Fairing, Right
193 Wing-to-Body Fairing, Left
194 Wing-to-Body Fairing, Right
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747-400
MAINTENANCE MANUAL
STA
STA
750
1700
SEE A
STATION 42 STATION 44 46 STATION
0 BL STA STA STA 750 800 840 WING-TO-BODY FAIRING B B A A STA 880 STA 920 STA 960 STA 1000 1120 STA 1245 STA 1398 STA 1351.35 STA 1357.75 STA 1620 STA 1700 STA 1480 STA 1660 STA 1580 1540 STA STA B B AA
STA 987.35 (APPROX) FWD STA 1253.50 A WING-TO-BODY FAIRING 0 C BLL
ALUMINUM FLAME SPRAY
ALUMINUM FLAME SPRAY - ELECTRICAL CRITICAL
ANTI-STATIC COATING
ALUMINUM SHEET
Wing-to-Body Fairing Adjustment Figure 501 (Sheet 1)
D20770
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
CORROSION PREVENTIVE COMPOUND
SEALING (EXAMPLE)
WING-TO-BODY
COMPOUND BODY SKIN
FAIRING
SEE
EXAMPLE FAIRING ATTACHMENT EXAMPLE FAIRING FLANGE ATTACHMENT A-A B-B
DIMPLED
WASHER
NUT PLATE STRUCTURE ____ RESISTANCE IS MEASURED ONLY
NOTE: BETWEEN POINT A AND POINT B. DO NOT MEASURE BETWEEN POINT A AND STRUCTURE.
Wing-to-Body Fairing Adjustment
Figure 501 (Sheet 2)
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