747-400 AMM 飞机维护手册 动力装置 POWER PLANT 2(35)

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 1.  General
_______
 A.  This procedure gives the task to prepare an engine which is assembled for one airline 767 or 747-400. It can then be used on a different airline 747-400. This procedure can apply to leased pool engines from P&W. This procedure also gives tasks to change the airplane for the engine and to put the airplane back to the initial configuration.
 (1)  
This 747-400 Maintenance Manual has data for a specified operator. This procedure only addresses engine conversion requirements. It does not address all possible engine configuration differences. Examples of engine configuration differences are AVM, Service Interphone, Hydraulic System Ripple Damper, ETOPS, IDG Power Feeder Cables, Hydraulic Pump, Fuel Flow Meter and Fuel Pressure Indicator. If the configuration of another operator's engine that is leased or a leased pool engine from PW is not the same as the Lessee's, you must verify this AMM provides maintenance instructions for the alternate configuration.

 B.  
The power plant configuration for the 767 is almost the same as the 747-400. These are the parts that are different:

 (1)  
The aft engine mount

 (2)  
The high pressure controller

 (3)  
The wire harness with the two extra connectors for the fire detection and overheat system.

 C.  
The 767 engines have a different EEC programming plug and name plate than the 747-400 engines.

 D.  
The 747-400 and the 767 inlet cowl, fan cowl panels, and thrust reverser are not directly interchangeable and must stay with the airplane.

 E.  
The wire harness connectors on the 767 engine have different numbers than the wire harness connectors on the 747-400 engine.

 F.  
You can only install power plants with a specified thrust of 56,000 pounds on the 747-400.

 G.  
Intermix of all certified engine configurations/models, Phase I, Phase III (-3), -3B, -1C on the same airplane is permitted.

 TASK 71-00-09-802-001-N00
 2.  Power Plant Conversion
______________________
 A.  References
 (1)  
747-400 AMM 36-11-06/401, High Pressure Controller

 (2)  
767 AMM 36-11-08/401, High Pressure Controller

 (3)  
AMM 71-21-02/401, Aft Lower Engine Mount

 (4)  
AMM 73-21-08/401, EEC Programming Plug

 (5)  
IPC 36-11-61 Fig. 1

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 71-00-09
 ALL  ú ú N03 Page 201 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(6)  
IPC 71-21-01 Fig. 1

 (7)  
IPC 73-21-04 Fig. 1

 B.  
Access

 (1)  
Location Zone
 412 Engine 1
 422 Engine 2
 432 Engine 3
 442 Engine 4

 C.  
Procedure

 S 862-002-N00
 CAUTION: DO NOT OPERATE PW4000 ENGINES ON 747-400 AIRPLANES THAT DO NOT
_______
 HAVE A SPECIFIED THRUST OF 56,000 POUNDS.

 CAUTION: DO NOT CHANGE THE SPECIFIED THRUST OF AN ENGINE WITHOUT THE
_______
 APPROVAL OF PRATT & WHITNEY. SOME ENGINES WITH A LOWER
 SPECIFIED THRUST CAN BE DAMAGED IF YOU OPERATE THEM AT 56,000
 POUNDS OF THRUST.

 (1)  Make sure the engine has the correct specified thrust:
 (a)  Make sure the engine name plate shows a specified thrust of 56,000 pounds. 1) If the engine name plate is not for an engine with a
 specified thrust of 56,000 pounds, replace it.
 NOTE: You can only get an engine name plate from a Pratt &
____
 Whitney representative.

 (b)  Look at the part number of the EEC programming plug. 1) Make sure the number is the same as shown on the engine name plate for a specified thrust of 56,000 pounds.
 2)  Replace the EEC programming plug if the number is different from the number on the engine name plate (AMM 73-21-08/401).
 NOTE: You can only get an EEC programming plug from a
____ Pratt & Whitney representative.
 S 022-003-N00
 (2)  767 CONFIGURATION ENGINES;
 Change the aft engine mount:
　
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