................................................................................ |ELECTRICAL HARNESS | | | | | | Electrical Harness | 6 | ................................................................................ |POWER PLANT | | | | | | Pretested Engine | 10 | | Untested Engine | 11 | ................................................................................ |MISCELLANEOUS AIRPLANE SYSTEM | | | Integrated Drive Generator | 3 | | Integrated Drive Generator Fuel/Oil | 3 | | Heat Exchanger | | | Integrated Drive Generator Air/Oil | 3 | | Heat Exchanger | | | Integrated Drive Generator Scavenge Filter | 2 | | Engine Driven Pump (EDP) | 3 | | High Power Engine Surge | 20 | 2................................................….............................1
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71-00-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TASK 71-00-00-805-001-N00
2. Precautionary Procedures and Limits
___________________________________
A. General
(1)
While you operate the engine, use the safety precautions and operation limits given in the engine operation procedure (AMM 71-00-00/201).
(2)
Tailwinds
(a) Tailwinds, or winds with the tailwind components, can cause a bad effect on the ground operation of the engines. During the start, and at idle or low power levels, a high EGT can occur. At high power levels, a compressor stall can occur.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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. 1 - ENGINE PNEUMATIC LEAK TEST
_______________________________________
TASK 71-00-00-705-002-N00
3. Test No. 1 - Pneumatic Leak Test________________________________
A. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 36-00-00/201, Pneumatic System
(3)
AMM 36-11-05/201, High Pressure Shutoff Valve (HPSOV)
(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 Reverser System
B.
Access
(1)
Location Zones
221,222 Control Cabin
412 Engine 1
422 Engine 2
432 Engine 3
442 Engine 4
(2)
Access Panels
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
C.
Prepare for the Test
S 865-003-N00
(1)
Supply electrical power (AMM 24-22-00/201).
S 865-004-N00
(2)
Supply APU or ground pneumatic power (AMM 36-00-00/201).
S 865-005-N00
(3)
Make sure the airplane is in the configuration that follows:
(a)
Make sure the FUEL CONTROL switch is in the CUTOFF position.
(b)
On the pilots' overhead panel, P5, make sure the components are in the conditions that follow: 1) START 1, 2, 3, and 4 buttons - in 2) NACELLE ANTI-ICE valves - closed 3) WING ANTI-ICE valves - closed 4) APU VALVE switch - OFF if the air source used is the ground
low pressure, ON if the APU air source is used. 5) L ISLN VALVE switch - open if the check is done on engine 1 or 2, closed if the check is on engine 3 or 4 6) R ISLN VALVE switch - closed if the check is on engine 1 or
2, open if the check is on engine 3 or 4 7) PACKS 1, 2, and 3 switches - OFF 8) Applicable ENGINE BLEED switch - ON 9) AUTOSTART switch - OFF
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