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71-00-00
ALL ú ú N01 Page 523 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
_____________________________________________________
TASK 71-00-00-705-027-N00
6. Test No. 4 - Power Acceleration/Deceleration Test
_________________________________________________
A. General
(1)
This test examines the engine power.
(2)
Do not do this test when it is necessary to use the nacelle anti-icing system because of the weather conditions. The test tables are made for a no-airbleed condition.
(a) If you must do the test with the anti-ice on, you must keep the anti-ice system on during all engine operation except for the last 30 seconds of each test stabilization period and during data recording.
(3)
Refer to AMM 71-00-00/201 for the engine operation limits.
B.
Standard Tools and Equipment
(1)
Thermometer - Alcohol, MIL-T-11399, Type ML-5,
-40 to 120°F (-40 to 49°C) range,
|0.5°F (|0.25°C) accuracy
(2)
Thermometer - Mercury, -40 to 120 °F (-40 to
49°C) range, |0.5°F (|0.25°C)
accuracy (optional to the alcohol
thermometer if it is not used in
the airplane)
C.
References
(1)
AMM 31-61-00/201, Integrated Display System
(2)
AMM 71-00-00/201, Power Plant
(3)
AMM 71-00-01/201, Power Plant
D.
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
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
71-00-00
ALL ú ú N03 Page 524 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
TEST NO. 4 - POWER AND ACCELERATION/DECELERATION TEST
_____________________________________________________
E. Procedure
S 975-052-N00
CAUTION: TO PREVENT ERRORS WHEN YOU USE THE CHECKOUT TARGET, DO NOT USE
_______ THE AIRPLANE INDICATION OF THE TOTAL AIR TEMPERATURE FOR THE AMBIENT AIR TEMPERATURE. MAKE SURE TO GET THE LOCAL BAROMETRIC PRESSURE (NOT CORRECTED TO SEA LEVEL) FROM THE CONTROL TOWER.
DO NOT USE A MERCURY THERMOMETER ON THE AIRPLANE. IF THE THERMOMETER BREAKS, THE MERCURY CAN CAUSE DAMAGE TO EQUIPMENT.
(1)
Find the ambient air temperature [outside air temperature (OAT)] with the thermometer in a shaded area of the airplane.
S 975-053-N00
(2)
Make a record of the barometric pressure and OAT.
S 975-261-N00
(3)
Find the MIN IDLE, APP IDLE, and N1 @1.25 EPR targets for the OAT and barometric pressure from the Engine Checkout Targets table (AMM 71-00-01/201).
(a) Make a record of the checkout targets.
S 865-134-N00
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 AND INJURY TO PERSONS.
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