(10)
 Close the core cowl panels (AMM 71-11-06/201).

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

 S 445-127-N00

 (12)
 Do the activation procedure for the thrust reversers
 (AMM 78-31-00/201).

 S 415-125-N00
 S 415-126-N00
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S 865-023-N00
 (13) For the applicable engine, remove the DO-NOT-CLOSE tags and close these circuit breakers:
 (a)  P6 Main Power Distribution Panel
 1) 6F1 IGN 1 ENG 1
 2) 6K19 IGN 2 ENG 1
 3) 6F2 IGN 1 ENG 2
 4) 6K20 IGN 2 ENG 2
 5) 6F3 IGN 1 ENG 3
 6) 6K21 IGN 2 ENG 3
 7) 6F4 IGN 1 ENG 4
 8) 6K22 IGN 2 ENG 4
 9) 6G19 STBY IGN ENG 1
 10) 6G20 STBY IGN ENG 2
 11) 6G21 STBY IGN ENG 3
 12) 6G22 STBY IGN ENG 4
 13) 6J18 ENG START AIR CONT

 S 865-024-N00
 (14) Remove electrical power if it is not necessary (AMM 24-22-00/201).
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TEST NO. 2 - ENGINE MOTORING
____________________________
 TASK 71-00-00-705-025-N00
 4. Test No. 2 - Engine Motoring
____________________________
 A. General
 (1) The starter turns the engine without ignition during this test.
 (a)  
Use the dry-motoring procedure when it is possible because it does not let fuel into the combustion chamber.

 (b)  
If the wet-motoring procedure is used, fuel goes into the combustion chamber but ignition does not occur. 1) After wet-motoring, you must operate the engine for a

 minimum of 5 minutes at minimum idle after the next engine start.
 B. Special Tools and Equipment
 (1)  
PWA 102757 Block, Wedge (2 Necessary - Optional)

 C.
References

 (1)  
AMM 71-00-00/201, Power Plant

 (2)  
AMM 71-11-04/201, Fan Cowl Panel

 (3)  
AMM 71-11-06/201, Core Cowl Panel

 (4)  
AMM 78-31-00/201, Thrust Reverser System

 D.
Access

 (1)  
Location Zones
 221,222 Control Cabin
 412 Engine 1
 422 Engine 2
 432 Engine 3
 442 Engine 4

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TEST NO. 2 - ENGINE MOTORING
____________________________
 (2)  Access Panels 413 Left Fan Cowl Panel - Engine 1 414 Right Fan Cowl Panel - Engine 1 415 Left Thrust Reverser Half - Engine 1 416 Right Thrust Reverser Half - Engine 1 417 Left Core Cowl Panel - Engine 1 418 Right Core Cowl Panel - Engine 1 423 Left Fan Cowl Panel - Engine 2 424 Right Fan Cowl Panel - Engine 2 425 Left Thrust Reverser Half - Engine 2 426 Right Thrust Reverser Half - Engine 2 427 Left Core Cowl Panel - Engine 2 428 Right Core Cowl Panel - Engine 2 433 Left Fan Cowl Panel - Engine 3 434 Right Fan Cowl Panel - Engine 3 435 Left Thrust Reverser Half - Engine 3 436 Right Thrust Reverser Half - Engine 3 437 Left Core Cowl Panel - Engine 3 438 Right Core Cowl Panel - Engine 3 443 Left Fan Cowl Panel - Engine 4 444 Right Fan Cowl Panel - Engine 4 445 Left Thrust Reverser Half - Engine 4 446 Right Thrust Reverser Half - Engine 4 447 Left Core Cowl Panel - Engine 4 448 Right Core Cowl Panel - Engine 4
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