(b)  
Make sure %N1 is within the checkout target limit.

 (c)  
Make a record of the position of the thrust lever at 1.25 EPR for the subsequent operation.

 (d)  
Slowly move the thrust lever rearward to the idle position.

 S 715-040-N00
 (8)  
Let the engine become stable at minimum idle for 5 minutes.

 S 715-149-N00

 (9)  
Do a test of the engine acceleration/deceleration in the primary EPR mode with the steps that follow:

 NOTE: Before you do the acceleration test, let the engine become
____
 stable for 5 minutes at minimum idle.

 (a)  Set the approach idle with the steps that follow:
 1)  For the applicable engine, open this circuit breaker and attach the DO-NOT-CLOSE tag: a) P6 Main Power Distribution Panel
 ~...................................... | 1| 6F10 ENG 1 IDLE CONT/TMC DISCRETE | ........................................ | 2| 6E10 ENG 2 IDLE CONT/TMC DISCRETE | ........................................ | 3| 6D10 ENG 3 IDLE CONT/TMC DISCRETE | ........................................ | 4| 6C10 ENG 4 IDLE CONT/TMC DISCRETE | 2..…...................................1
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
 71-00-00
 ALL  ú ú N02 Page 527 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TEST NO. 4 - POWER AND ACCELERATION/DECELERATION TEST
_____________________________________________________
 2) Open this circuit breaker and attach the DO-NOT-CLOSE tag:
 NOTE: Alternate mode will occur and the EPR display on
____
 EICAS performance page will go off.

 a) P414 Power Distribution Center - Left
 ~......................................
 | 1| 414D25 ENG IDLE CONT ALT |
 2..…...................................1

 (b)  
Make a record of the approach idle N2 indication.

 1)  Make sure the approach idle N2 indication is in the
 permitted limits (AMM 71-00-01/201).

 (c)  
Make a record of the engine conditions.

 (d)  
Set the minimum idle with the steps that follow:

 1)  For the applicable engine, remove the DO-NOT-CLOSE tag and close this circuit breaker: a) P6 Main Power Distribution Panel
 ~......................................
 | 1| 6F10 ENG 1 IDLE CONT/TMC DISCRETE |
 ........................................
 | 2| 6E10 ENG 2 IDLE CONT/TMC DISCRETE |
 ........................................
 | 3| 6D10 ENG 3 IDLE CONT/TMC DISCRETE |
 ........................................
 | 4| 6C10 ENG 4 IDLE CONT/TMC DISCRETE |
 2..…...................................1

 2) Remove the DO-NOT-CLOSE tag and close this circuit breaker:
 a)  P414 Power Distribution Center - Left
 ~......................................
 | 1| 414D25 ENG IDLE CONT ALT |
 2..…...................................1

 (e)  
Move the ELEC ENG CONTROL switch on the pilot's overhead panel,
 P5, from the NORM position to the ALTN position.

 (f)  
Move the ELEC ENG CONTROL switch on the P5 panel back to the
 NORM position from the ALTN position.

 (g)  
If the ambient air temperature is less than 45 °F (7 °C), do
 the steps that follow:
 1) Use the Power Plant Operation (Normal) procedure to do the

 engine shutdown (AMM 71-00-00/201).
 WARNING:_______USE AMM 71-00-00/201 TO OPERATE THE POWER PLANT. IF YOU DO NOT USE THIS PROCEDURE, YOU CAN CAUSE DAMAGE TO EQUIPMENT OR INJURY TO PERSONS.
 2)  Use the Power Plant Operation (Normal) procedure to start the engine (AMM 71-00-00/201).
 (h)  Slowly move the thrust lever forward to the approach idle N2
 value recorded earlier.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機維護手冊 動力裝置 POWER PLANT 1(58)