C.
Consumable Materials
(1)
G00374 - Tape, Mylar, 3M No. 850, 2-inch width
D.
References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 71-11-04/201, Fan Cowl Panels
(3)
AMM 71-11-06/201, Core Cowl Panels
(4)
AMM 72-31-01/401, Inlet Cone
(5)
AMM 72-31-02/401, 1st-Stage (Fan) Blades
(6)
AMM 78-31-00/201, Thrust Reverser System
(7)
AMM 80-11-02/401, Start Valve
(8)
AMM 80-11-03/401, Starter QAD Adapter
E.
Access
(1)
Location Zones
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
(2)
Access Panels
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
F.
Procedure
S 492-035-N00
WARNING: MAKE SURE YOU OPEN THE APPLICABLE ENGINE IGNITION CIRCUIT
_______ BREAKERS BEFORE YOU OPEN THE ENGINE FUEL CONT VALVE CIRCUIT BREAKER. THE IGNITER PLUGS CAN FIRE AUTOMATICALLY IF YOU DO NOT OPEN THE CIRCUIT BREAKERS. IF THE COMBUSTION CHAMBER HAS FUEL IN IT, AN INTERNAL ENGINE FIRE OR TAILPIPE FIRE CAN OCCUR. THE FIRE CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE ENGINE.
(1) For the applicable engine, open these circuit breakers and install the DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) 6F1 IGN 1 ENG 1
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2) 6K19 IGN 2 ENG 1
3) 6G19 STBY IGN ENG 1
4) 6F2 IGN 1 ENG 2
5) 6K20 IGN 2 ENG 2
6) 6G20 STBY IGN ENG 2
7) 6F3 IGN 1 ENG 3
8) 6K21 IGN 2 ENG 3
9) 6G21 STBY IGN ENG 3
10) 6F4 IGN 1 ENG 4
11) 6K22 IGN 2 ENG 4
12) 6G22 STBY IGN ENG 4
S 492-036-N00
(2) For the applicable engine, open these circuit breakers and install the DO-NOT-CLOSE tags:
(a) P6 Main Power Distribution Panel
1) 6L10 FUEL CONT VALVE ENG 1
2) 6L11 FUEL CONT VALVE ENG 2
3) 6L12 FUEL CONT VALVE ENG 3
4) 6L13 FUEL CONT VALVE ENG 4
S 012-101-N00
(3) Open the fan cowl panels (AMM 71-11-04/201).
S 042-103-N00
WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
(4) Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 412-102-N00
(5) Open the core cowl panels (AMM 71-11-06/201).
S 012-104-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU OPEN THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(6)
Open the thrust reversers (AMM 78-31-00/201).
S 022-038-N00
(7)
Remove the start valve (AMM 80-11-02/401).
S 022-039-N00
(8)
Remove the starter QAD adapter (AMM 80-11-03/401).
S 492-040-N00
(9)
Install the gearbox lock on the starter drive pad (Fig. 201).
(a)
Connect the splines on the gearbox lock with the starter drive pad. Put the gearbox lock against the starter drive pad.
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