H93452
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71-00-00
ALL ú ú N03 Page 561 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
0.70
0.69
0.68
0.67
0.66
0.65
0.64
0.63
0.62
0.61
0
PS4I/PT3
OR 0.97 (PS4I/PS3)
THIS CURVE IS FOR ENGINES POST-PW-SB 72-662 NOTES: THE PERMITTED BAND IS NOT APPLICABLE_____ WITH TOBI DUCT PN's 50K362-01, 50K362-001, OR 50K372-01. TO THE IDLE POWER CONDITIONS.
(PW4052-3, PW4056-3, PW4060-3, PW4062-3, AND ALL (-3B) INTERMIX MODELS)
0998 L-B0049
Figure 506 (Sheet 4) Turbine Cooling Air Ratio Check Limits
H93532
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71-00-00
ALL ú ú N03 Page 562 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
0.74
0.73
0.72
0.71
0.70
0.69
0.68
0.67
0.66
0.65
0.64
PS4I/PT3
OR 0.97 (PS4I/PS3)
THIS CURVE IS FOR ENGINES PRE-PW-SB 72-662 NOTES: THE PERMITTED BAND IS NOT APPLICABLE_____ WITH TOBI DUCT PN's 50K137-01, OR 50K362-002. TO THE IDLE POWER CONDITIONS.
ALL (-3B) INTERMIX MODELS) (PW4052-3, PW4056-3, PW4060-3, PW4062-3, AND
0998 L-B6933
Figure 506 (Sheet 5) Turbine Cooling Air Ratio Check Limits
H93583
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71-00-00
ALL ú ú N03 Page 563 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
TEST NO. 9 - PERFORMANCE TEST
_____________________________
S 715-057-N00
(9) Do a test of the engine acceleration/deceleration in the primary EPR mode with the steps that follow:
NOTE: Before you do the acceleration test, let the engine become
____
stable for 5 minutes at the minimum idle.
(a) Set the approach idle with the steps that follow:
1) For the applicable engine, open this circuit breaker and attach the DO-NOT-CLOSE tag: 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) Open this circuit breaker and attach the DO-NOT-CLOSE tag:
NOTE: The alternate mode will occur and the EPR display on
____ the EICAS performance page will go off.
a) P414 Power Distribution Center - Left ~........................................ | 1 |414D25 ENG IDLE CONT ALT | 2...…....................................1
(b) Make a record of the approach idle N2 indication.
1) Make sure the approach idle N2 indication is in the permitted range (AMM 71-00-01/201).
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TEST NO. 9 - PERFORMANCE TEST_____________________________
(c) Make a record of the engine indications.
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