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C. Access
(1)
Location Zone
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
(2)
Access Panel
413 and 414 Fan Cowl Panel - Engine 1
423 and 424 Fan Cowl Panel - Engine 2
433 and 434 Fan Cowl Panel - Engine 3
443 and 444 Fan Cowl Panel - Engine 4
417 and 418 Core Cowl Panel - Engine 1
427 and 428 Core Cowl Panel - Engine 2
437 and 438 Core Cowl Panel - Engine 3
447 and 448 Core Cowl Panel - Engine 4
415 and 416 Thrust Reverser Halves - Engine 1
425 and 426 Thrust Reverser Halves - Engine 2
435 and 436 Thrust Reverser Halves - Engine 3
445 and 446 Thrust Reverser Halves - Engine 4
D.
Engine Preservation - Method I (8 to 30 days)
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(1) Make sure the engine was operated in the last seven (7) days.
(a) If the engine was not operated in the last seven days, do the Periodic Engine Run.
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(2)
Make sure the engine oil system is serviced full (AMM 12-13-01/301) or drain the engine oil with the steps in the Oil System Preservation procedure.
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(3)
Install covers on all engine openings.
(a) Install a cover on the engine inlet.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(b)
Install a cover on the engine exhaust duct.
(c)
Seal all openings at the bottom of the fan cowl panels, core cowl panels and thrust reversers.
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(4)
Store the engine away from direct exposure to the elements in a hanger equipment shed, or similar building, or cover with a tarp or plastic closed on all sides.
E.
Engine Preservation - Method II (31 to 90 days)
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(1) Make sure the engine was operated in the last seven (7) days.
(a) If the engine was not operated in the last seven days, do the Periodic Engine Run.
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(2)
Drain the oil from the engine with the steps in the Oil System Preservation procedure.
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(3)
Install covers on all engine openings.
(a)
Install a cover on the engine inlet.
(b)
Install a cover on the engine exhaust duct.
(c)
Seal the engine in a shipping bag or equivalent.
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(4)
Store the engine away from direct exposure to the elements in a hanger equipment shed, or similar building, or cover with a tarp or plastic closed on all sides.
F.
Method III (More Than 90 Days)
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(1)
Do this task: Power Plant Depreservation (AMM 71-00-03/201).
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(2)
Do one of the preservation procedures above again (Method I or Method II) to keep the engine in storage.
G.
Periodic Engine Run
NOTE: The engine run must be of sufficient duration and power setting to
____
remove all moisture in the oil system.
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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.
(1) Use the Power Plant Operation (Normal) procedure to start the engine (AMM 71-00-00/201).
(a) Let the engine become stable at minimum idle for five minutes.
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