(8)  
Close the left and right fan cowl panels (AMM 71-11-04/201). S 442-377

 (9)  
Do the activation procedure for the thrust reverser (AMM 78-31-00/201).

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747-400 MAINTENANCE MANUAL
 STRUT SYSTEMS SEALANT - MAINTENANCE PRACTICES
_____________________________________________
 1.  General
_______
 A.  This procedure contains the data to apply sealant to the systems that go through the strut structure.
 TASK 54-53-01-392-001
 2.  Strut Systems Sealant Application (Fig. 201)
_________________________________
 A.  Consumable Materials
 (1)  A00160 BMS5-63, Sealant
 B.  References
 (1)  
AMM 51-31-01/201, Seals and Sealing

 (2)  
AMM 54-62-00/201, Nacelle Strut Access Doors

 (3)  
AMM 71-11-04/201, Fan Cowl Panels

 (4)  
AMM 71-11-06/201, Core Cowl Panels

 (5)  
AMM 78-31-00/201, Thrust Reverser

 C.  Access
 (1)  
Location Zone
 452 Nacelle Strut 1 - Torque Box
 462 Nacelle Strut 2 - Torque Box
 472 Nacelle Strut 3 - Torque Box
 482 Nacelle Strut 4 - Torque Box

 (2)  
Access Panel
 452AL Nacelle Strut - Strut #1
 462AL Nacelle Strut - Strut #2
 472AL Nacelle Strut - Strut #3
 482AL Nacelle Strut - Strut #4

 D.  Procedure
 S 042-016
 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).
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747-400
MAINTENANCE MANUAL

EXAMPLE OF AN INBOARD OR OUTBOARD STRUT

Strut Systems Sealant
Figure 201 (Sheet 1)

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747-400
MAINTENANCE MANUAL

FEEDER POWER  A 
WEB MIDSPAR STRUT 
A 
A 
FEEDER POWER CLAMP SEAL BLOCK  BLOCK SEAL 

DC93-006 
(EXAMPLE)  DC93-006 
(14 LOCATIONS) 
A-A 
Strut Systems Sealant 
Figure 201 (Sheet 2) 

C65726
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 (2)  S 012-017Open the left fan cowl panel (AMM 71-11-04/201).
 (3)  S 012-018Open the left core cowl panel (AMM 71-11-06/201).
 S 012-019

 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 thrust reverser (AMM 78-31-00/201).

 S 012-005

 (5)  
Do the procedure to open the applicable access doors (AMM 54-62-00/201).
　
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