CHAPTER
76
Engine Control PW
777 AIRCRAFT MAINTENANCE MANUAL
CHAPTER 76 Engine Control PW
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CHAPTER 76
Engine Control PW
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76-00-00 ENGINE CONTROLS -INTRODUCTION 2 BEJ ALL
76-00-00 ENGINE CONTROLS -GENERAL DESCRIPTION 4 BEJ ALL
76-00-00 ENGINE CONTROLS -COMPONENT LOCATIONS 6 BEJ ALL
76-00-00 ENGINE CONTROLS -SWITCHES -COMPONENT LOCATIONS 8 BEJ ALL
76-00-00 ENGINE CONTROLS -THRUST LEVER & AUTOTHROTTLE ASSEMBLY 11 BEJ ALL
-FUNCTIONAL DESCRIPTION
76-00-00 ENGINE CONTROLS -TLA RESOLVER 14 BEJ ALL
76-00-00 ENGINE CONTROLS -FUEL CONTROL SWITCHES -FUNCTIONAL 16 BEJ ALL
DESCRIPTION
76-00-00 ENGINE CONTROLS -OPERATION 19 BEJ ALL
76-00-00 ENGINE CONTROLS -TRAINING INFORMATION POINTS 22 BEJ ALL
76-CONTENTS
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PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
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Page 1 D633W101-BEJ Sep 05/2002
ENGINE CONTROLS -INTRODUCTION
General * TO/GA -takeoff/go-around
* TRA -thrust resolver angle The engine controls system supplies most of the control signals * T/R -thrust reverser the engine needs to operate. It also controls inputs to other airplane systems that require engine control status.
The engine controls system includes these components:
*
Thrust levers
*
Fuel control switches
*
Autothrottle servo motors
*
Thrust lever switches
*
Switch pack
*
Thrust lever angle (TLA) resolvers.
Abbreviations and Acronyms
*
AIMS -airplane information management system
*
ASM -autothrottle servo motor
*
ATA -air transport association
*
A/T -autothrottle
*
EDIU -engine data interface unit
*
EEC -electronic engine control
*
ELMS -electrical load management system
*
EPCS -electronic propulsion control system
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EPR -engine pressure ratio
*
ERU -engine relay unit
*
FMU -fuel metering unit
*
GSE -ground support equipment
*
IDG -integrated drive generator
*
MFD -multi-function display
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