CHAPTER
80
Engine Starting PW
777 AIRCRAFT MAINTENANCE MANUAL
CHAPTER 80 Engine Starting PW
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CHAPTER 80
Engine Starting PW
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80-00-00 ENGINE STARTING -INTRODUCTION 2 BEJ ALL
80-00-00 ENGINE STARTING -GENERAL DESCRIPTION 4 BEJ ALL
80-00-00 ENGINE STARTING -COMPONENT LOCATIONS -ENGINE 6 BEJ ALL
80-00-00 ENGINE STARTING -COMPONENT LOCATIONS -FLIGHT DECK 8 BEJ ALL
80-00-00 ENGINE STARTING -STARTER AIR VALVE 10 BEJ ALL
80-00-00 ENGINE STARTING -STARTER AIR VALVE SOLENOID AND FILTER 12 BEJ ALL
80-00-00 ENGINE STARTING -STARTER 14 BEJ ALL
80-00-00 ENGINE STARTING -STARTER SERVICING 16 BEJ ALL
80-00-00 ENGINE STARTING -FUNCTIONAL DESCRIPTION 19 BEJ ALL
80-00-00 ENGINE STARTING -FUNCTIONAL DESCRIPTION -START PROFILE 22 BEJ ALL
80-00-00 ENGINE STARTING -OPERATION 25 BEJ ALL
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PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
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Page 1 D633W101-BEJ Sep 05/2002
ENGINE STARTING -INTRODUCTION
General
The engine starting system uses pneumatic power to turn the N2 shaft during an engine start. You also use the system to motor the engine.
The engine starting system operates on the ground and in the air. Flight deck switches and the EEC control the system.
The engine starting system uses these pneumatic power sources:
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Auxiliary power unit (APU)
*
Ground power unit (GPU)
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Opposite operating engine.
Abbreviations and Acronyms
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AIMS -airplane information management system
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APU -auxiliary power unit
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ASCPC -air supply cabin pressure controller
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capt -captain
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EEC -electronic engine control
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EDIU -engine data interface unit
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EICAS -engine indication and crew alerting system
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ELMS -electrical load management system
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ERU -engine relay unit
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flt -flight
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GPU -ground power unit
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inst -instrument
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LRU -line replaceable unit
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max -maximum
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mgmt -management
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OPAS -overhead panel ARINC systems
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