71-11-08
ALL ú ú N01 Page 509 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
B. Access
(1)
Location Zone
413 and 414 Fan Cowl Panel - Engine 1
423 and 424 Fan Cowl Panel - Engine 2
433 and 434 Fan Cowl Panel - Engine 3
443 and 444 Fan Cowl Panel - Engine 4
417 and 418 Core Cowl Panel - Engine 1
427 and 428 Core Cowl Panel - Engine 2
437 and 438 Core Cowl Panel - Engine 3
447 and 448 Core Cowl Panel - Engine 4
C.
Procedure (Fig. 501)
S 045-014-N00
WARNING: DO THE DEACTIVATION PROCEDURE FOR THE THRUST REVERSERS TO
_______ PREVENT THE OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1)
Do this procedure: Thrust Reverser Deactivation for Ground
Maintenance (AMM 78-31-00/201).
S 215-011-N00
(2)
Do a check of adjustment of the clearance on the upper and lower side of the pressure relief door.
(a) Make sure that the upper and lower side clearances are 0.03-0.09 inch (0.74-2.26 mm). 1) If the clearance does not agree with the given tolerance,
remove or install the washers between the hinge assemblies and bushings.
S 445-016-N00
(3) Do this procedure: Thrust Reverser Activation After Ground
Maintenance (AMM 78-31-00/201).
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71-11-08
ALL ú ú N01 Page 510 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
COWL PANEL HOLD-OPEN ROD - MAINTENANCE PRACTICES
________________________________________________
1. General
_______
A. There are two tasks in this procedure. The first task does an inspection of the hold-open rods for the fan cowls, the thrust reversers, and the core cowls. The second task is used to clean the hold-open rods.
B. The hold-open rods hold the cowl panels in the open position. One end of the rods is attached to the cowl panel with a bolt. The other end of the rods attaches to a stow bracket on the cowl panel when the cowl is closed. When the cowl panel is open, one end of the rods attach to a bracket on the engine.
C. The hold-open rods must lock when they are fully extended. It is important to make sure the hold-open rods and the lock mechanisms operate correctly.
TASK 71-11-10-102-017-N00
2. Cowl Panel Hold-Open Rod - Inspection/Check (Fig. 201)
___________________________________________
A. References
(1)
AMM 71-11-04/201, Fan Cowl Panel
(2)
AMM 71-11-06/201, Core Cowl Panel
(3)
AMM 78-31-00/201, Thrust Reversers
B.
Access
(1)
Location Zone 413 and 414 Fan Cowl Panel - Engine 1 423 and 424 Fan Cowl Panel - Engine 2 433 and 434 Fan Cowl Panel - Engine 3 443 and 444 Fan Cowl Panel - Engine 4 415 and 416 Thrust Reverser Halves - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4 417 and 418 Core Cowl Panel - Engine 1 427 and 428 Core Cowl Panel - Engine 2 437 and 438 Core Cowl Panel - Engine 3 447 and 448 Core Cowl Panel - Engine 4
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