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 (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)  Put the ELEC ENG CONTROL switch on the pilot's overhead panel,
 P5, from the NORM position to the ALTN position.
 (f)  Put the ELEC ENG CONTROL switch 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 (Ref 71-00-00/201).
 WARNING: USE 71-00-00/201 TO OPERATE THE POWER PLANT. IF YOU_______
 DO NOT USE THIS PROCEDURE, YOU CAN CAUSE DAMAGE TO
 EQUIPMENT AND INJURY TO PERSONS.
 2) Use the Power Plant Operation (Normal) procedure to start
 the engine (AMM 71-00-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TEST NO. 9 - PERFORMANCE TEST_____________________________
 (h)  Slowly move the thrust lever forward to the approach idle N2
 value recorded earlier.
 (i)  Operate the engine at approach idle N2 speed for 15 minutes.
 It is necessary to stabilize the engine at approach idle prior
 to snap acceleration.
 (j)  With a stopwatch, prepare to measure the time of the engine
 acceleration from the approach idle to 1.23 EPR.
 (k)  Quickly (1 second or less) move the forward thrust lever from
 the approach idle position to the 1.25 EPR position recorded
 earlier.
 1) Measure the time of the acceleration from the approach idle
 to 1.23 EPR.
 2) Make sure the acceleration time is 5.7 seconds or less to
 the 1.23 EPR target.
 (l)  Let the engine become stable for 30 - 35 seconds.
 1) Make sure the engine speed does not go more than the 1.25
 EPR target.
 (m)  Quickly (1 second or less) move the forward thrust lever
 rearward to the idle position.
 1) Measure the time of the deceleration from 1.25 EPR to 1.08
 EPR.
 2) Make sure the deceleration time is 6.0 seconds or less to
 the 1.08 EPR target.
 (n)  Make sure the engine becomes stable at the minimum idle.

 S 865-232-N00
 (10)
 Operate the engine at idle for 5 minutes to let the engine become cool.

 S 865-107-N00

 (11)
 Use the Power Plant Operation (Normal) procedure to do the engine shutdown (AMM 71-00-00/201).

 S 015-163-N00

 (12)
 Open the fan cowl panels (AMM 71-11-04/201).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TEST NO. 9 - PERFORMANCE TEST
_____________________________ S 045-165-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
　
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