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747-400 MAINTENANCE MANUAL
LANDING LIGHTS - MAINTENANCE PRACTICES
______________________________________
1. General_______
A. This procedure has these tasks:
(1)
Landing Light - Lamp Replacement
(2)
Landing Light - Light Beam Adjustment
(3)
Landing Light - Transformer Replacement
(4)
Landing Light Lens - Temporary Repair
B. If necessary, you can install a temporary metal plate. Because the temporary lens is not clear, the light behind it will not give lighting.
TASK 33-42-02-962-001
2. Landing Light - Lamp Replacement (Fig. 201)________________________________
A. Special Tools and Equipment
(1) Lock, Leading Edge Flap Drive Unit (Ref 27-81-00/201)
B. References
(1)
AMM 20-11-29/201, Seals on Open Terminals in Fuel Vapor Areas
(2)
AMM 24-22-00/201, Manual Control
(3)
AMM 27-81-00/201, Leading Edge Flap System
(4)
IPC 33-42-02-01
(5)
SSM 33-42-10
C. Access
(1) Location Zone
511 Leading Edge to Front Spar, Left
611 Leading Edge to Front Spar, Right
D. Procedure
S 862-088
(1) Prepare for the replacement of the landing light lamp:
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE
_______ AND TE FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(a) Do this task: "Leading Edge Flap Extension" (Ref 27-81-00/201).
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747-400
MAINTENANCE MANUAL
RETAINER RING
TRUNNION ASSEMBLY 7. T-BOLT AND (3 LOCATIONS) 8. ADJUSTMENT SCREW LEADING WING EDGE
RETAINER
3. LAMP
1. FRAME
FWD INBD SEE A SEE B (6 LOCATIONS) 2. SCREW 5. COVER 4. GASKET
LANDING LIGHT
Landing Light Lamp Replacement Figure 201 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400
MAINTENANCE MANUAL
RETAINER
GASKET
CLIPPED GASKET
Landing Light Lamp Replacement
Figure 201 (Sheet 2)
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747-400
MAINTENANCE MANUAL
RETAINER
GASKET
CLIPPED GASKET
Landing Light Lamp Replacement
Figure 201 (Sheet 3)
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G99906
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