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_______ 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.
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
_______ LE FLAP SAFETY LOCK. THE LE FLAPS CAN MOVE QUICKLY IF YOU DO NOT DO THE STEPS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (4)  Do this task: "Safety Locks Removal and Extended Leading Edge Flaps Activation" (AMM 27-81-00/201).
 S 412-306
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
 (5)
Close the left and right thrust reversers (AMM 78-31-00/201).

 S 412-359

 (6)
Close the left and right core cowl panels (AMM 71-11-06/201).

 S 412-307

 (7)
Close the left and right fan cowl panels (AMM 71-11-04/201).

 S 442-360

 (8)  
Do the activation procedure for the thrust reverser
 (AMM 78-31-00/201).

 

 TASK 54-53-00-702-117
 6. Outboard Strut, Upper Spar Inlet - Leak Check (S3)
__________________________________________________
 A. General
 (1)  This task gives instuctions on how to do a leak check (S3) of the upper spar inlet structure on the outboard strut.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400
MAINTENANCE MANUAL

 B. Equipment
 (1)  
Water source - low pressure, can spray up to 2 quarts (1.9 liters) per minute

 (2)  
Container - 5 gallon (19 liter) capacity, can collect and measure water to within 1 fluid ounce (30 ml) (measure can be done in smaller containers)

 (3)  
Funnel - long necked

 C. References
 (1)  
AMM 08-00-00/201, Leveling and Weighing

 (2)  
AMM 27-81-00/201, Leading Edge Flaps

 (3)  
AMM 51-31-01/201, Seals and Sealing

 (4)  
AMM 54-62-00/201, Nacelle Strut Access Panels

 (5)  
AMM 71-11-04/201, Fan Cowl Panels

 (6)  
AMM 71-11-06/201, Core Cowl Panels

 (7)  
AMM 78-31-00/201, Thrust Reverser System

 D. Access
 (1)  
Location Zone
 451 Nacelle Strut 1 - Forward Fairing
 452 Nacelle Strut 1 - Torque Box
 481 Nacelle Strut 4 - Forward Fairing
 482 Nacelle Strut 4 - Torque Box

 (2)  
Access Panel
 451B No. 3 Forward Fairing - Engine 1
 454AL Aft Fairing Door - Engine 1
 521FT Upper Wing Leading Edge Cover - Engine 1
 481B No. 3 Forward Fairing - Engine 4
 484AL Aft Fairing Door - Engine 4
 621FT Upper Wing Leading Edge Cover - Engine 1

 

 E. Prepare for the Leak Check
 S 042-341
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1)  
Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).

 (2)  
Open the left and right fan cowl panels (AMM 71-11-04/201).

 (3)  
Open the left and right core cowl panels (AMM 71-11-06/201).

 S 012-118
 S 012-342
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 012-119
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
 (4)  Open the left and right thrust reversers (AMM 78-31-00/201).
　
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本文鏈接地址：747-400 AMM 飛機維護手冊 NACELLES/PYLONS(63)