(2)  
AMM 71-11-04/201, Fan Cowl Panels

 (3)  
AMM 71-11-06/201, Core Cowl Panels

 (4)  
AMM 78-31-00/201, Thrust Reverser System

 (5)  
AMM 78-31-01/501, Thrust Reverser

 B.
Access

 (1)  
Location Zones 415 and 416 Engine 1 - Thrust Reverser Halves 425 and 426 Engine 2 - Thrust Reverser Halves 435 and 436 Engine 3 - Thrust Reverser Halves 445 and 446 Engine 4 - Thrust Reverser Halves

 (2)  
Access Panels
 413 and 414 Fan Cowl Panels - Engine 1
 417 and 418 Core Cowl Panels - Engine 1
 423 and 424 Fan Cowl Panels - Engine 2
 427 and 428 Core Cowl Panels - Engine 2
 433 and 434 Fan Cowl Panels - Engine 3
 437 and 438 Core Cowl Panels - Engine 3
 443 and 444 Fan Cowl Panels - Engine 4
 447 and 448 Core Cowl Panels - Engine 4

 C.
Prepare To Do an Inspection of the Thrust Reverser Hinges

 S 046-041-N00
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPEED BRAKE CONTROL
_______ SYSTEM. IF YOU DO NOT DO THIS, THE SPOILERS CAN MOVE QUICKLY WHEN YOU MOVE THE THRUST LEVERS. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1)  Do the deactivation procedure for the Speed Brake Control System (AMM 27-62-00/201).
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S 866-055-N00
 (2)  
Make sure the forward thrust levers are in the idle position and attach the DO-NOT-OPERATE tags.

 S 866-042-N00

 (3)  
Make sure the reverse thrust levers are in the fully stowed position and attach the DO-NOT-OPERATE tags.

 S 046-043-N00
 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.
 (4)  
Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).

 S 016-044-N00

 (5)  
Open the fan cowl panels (AMM 71-11-04/201).

 S 016-045-N00

 (6)  
Open the core cowl panels (AMM 71-11-06/201).

 S 016-056-N00
 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.
 (7)  
Open the thrust reversers (AMM 78-31-00/201).

 D.
Do an Inspection of the Thrust Reverser Hinges (Fig. 602)

 S 226-062-N00
 (1)  Examine the thrust reverser hinges for damage or wear.
 (a) If you find damage, repair the hinge (SRM 54-30-90).
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE B SEE C SEE D
SEE A
FWD 
A 
COWL FITTING (REF)  B  STRUT FITTING (REF)  BOLT 0.24 INCH MIN  WASHER 0.21 INCH MIN 
AFT HINGE (VIEW IN THE FORWARD DIRECTION) B B  STRUT FITTING (REF) FWD  B-B  NUT COWL FITTING (REF) 

Thrust Reverser Hinge Inspection Figure 602 (Sheet 1)
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 78-31-01
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 ú  N01  Page 608
 ú  Oct 10/94 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C76402

WASHER
Thrust Reverser Hinge Inspection
Figure 602 (Sheet 2)

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