747-400 AMM 飞机维护手册 发动机 ENGINE 1(38)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
No. 5 - Engine Overspeed Inspection
___________________________________
 b)  Do the Test No. 3 - Ground Test - Idle Power (AMM 71-00-00/501) to make sure the engine operates correctly.
 NOTE: If the engine operates correctly, it can stay
____ in service for 60 hours.
 After 60 hours, you must replace the engine (AMM 71-00-02/401).
 5)  If damage is found, do the applicable borescope inspections or replace the engine (AMM 71-00-02/401) if necessary.
 NOTE: If the engine operates correctly, it can stay in
____
 service for 60 hours.

 After 60 hours, you must replace the engine (AMM 71-00-02/401).
 (c)  If the overspeed occurred in Area C, do the steps that follow: 1) Make sure the N2 indication system operates correctly
 (AMM 77-12-00/501). 2) Remove the engine (AMM 71-00-02/401). 3) Refer to the Engine Manual to do a full inspection of the
 engine parts that turn. The inspection must include the steps that follow: a) Remove the high pressure compressor (HPC) to do a full
 overhaul inspection of the engine parts that turn. b) Examine the high pressure turbine (HPT) blades and disks for growth.
 NOTE: Growth is when the dimensions of a part
____ increase because of heat and force.
 c) Examine the HPT blades for worn knife-edge seals. d) Do a fluorescent penetrant inspection of the HPT disks and blades for damage.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
No. 6 - Engine Windmilling Inspection/Check
___________________________________________
 TASK 72-00-00-206-075-N00
 6. Engine Windmilling Inspection/Check
___________________________________
 A. General
 CAUTION: BEFORE YOU START THE ENGINE IN THIS PROCEDURE, EXAMINE AND
_______ CORRECT ALL ENGINE MALFUNCTIONS THAT CAUSED THE INFLIGHT SHUTDOWN. STEPS FROM THIS PROCEDURE CAN CAUSE DAMAGE TO THE ENGINE IF SOME MALFUNCTIONS ARE NOT CORRECTED.
 (1)  
This procedure gives you the steps that you do after engine windmilling occurred because the engine stopped during a flight. When an engine stops during a flight, this is refered to as an inflight shutdown, IFSD.

 (2)  
A record of the engine operation conditions before the IFSD and during the windmilling must be kept to refer to subsequently.

 B.
References

 (1)  
AMM 12-13-03/301, Engine - Servicing

 (2)  
AMM 71-00-00/201, Power Plant

 (3)  
AMM 71-00-02/401, Power Plant

 (4)  
AMM 71-11-04/201, Fan Cowl Panels

 (5)  
AMM 71-11-06/201, Core Cowl Panels

 (6)  
AMM 78-31-00/201, Thrust Reversers

 (7)  
AMM 79-21-05/601, Main Oil Filter Element

 (8)  
AMM 79-21-10/601, Magnetic Chip Detector

 C.
Access

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

 D.
Prepare for the Engine Windmilling Inspection/Check

 (1)  
Open the fan cowl panel (AMM 71-11-04/201).

 S 016-324-N00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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 ALL  ú ú N01 Page 632 ú Feb 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
No. 6 - Engine Windmilling Inspection/Check
___________________________________________
 S 046-325-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT
　
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