*
HPC -high pressure compressor
*
HPT -high pressure turbine
*
HYDIM -hydraulic interface module
*
I/O -input/output
*
IDG -integrated drive generator
*
INLK -interlock
*
ISLN -isolation
*
LPC -low pressure compressor
*
LPT -low pressure turbine
*
MFD -multi-functional display
*
NAC -nacelle
*
OPAS -overhead panel ARINC system
*
PDS -primary display system
*
PMA -permanent magnet alternator
*
PROG -programming
*
PSEU -proximity sensor electronics unit
*
SCU -signal conditioner unit
*
SOL -solenoid
*
TCA -turbine cooling air
*
TCC -turbine case cooling
*
TLA -thrust lever angle
*
TMB -torque motor bank
*
T/R -thrust reverser
*
VLV -valve
*
VSV -variable stator vanes
*
XDCR -transducer
EFFECTIVITY BEJ ALL 73-00-00
Page 2
D633W101-BEJ Sep 05/2002
PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
ENGINE FUEL AND CONTROL -INTRODUCTION
EFFECTIVITY BEJ ALL 73-00-00
Page 3
D633W101-BEJ Sep 05/2002
ENGINE FUEL AND CONTROL -INTERFACES
General
The engine fuel and control system has interfaces with many systems and components. Interfaces with other engine systems are primarily analog. Interfaces with airplane systems and components are primarily on the ARINC 629 buses.
Analog Interfaces
These analog engine fuel and control system interfaces supply control and feedback:
*
Engine ignition -exciter power
*
Engine air -actuator positions
*
Engine controls -resolver excitation
*
Engine indicating -engine parameter data
*
Engine exhaust -thrust reverser operation
*
Engine oil -oil cooling
*
Engine starting -starter pneumatic supply
*
Electrical power -airplane power application.
ARINC 629 Interfaces
These ARINC 629 engine fuel and control system interfaces supply and receive control and indication data:
*
AIMS -indication, air data, and flight management control
*
Flight deck controls -switch position and indication
*
FSEU -flap position
*
ASCPC -pneumatic supply status
*
Systems card file -air driven pump and anti-ice status.
EFFECTIVITY BEJ ALL 73-00-00
Page 4
D633W101-BEJ Sep 05/2002
PW4000 SERIES ENGINES
777 AIRCRAFT MAINTENANCE MANUAL
ENGINE FUEL AND CONTROL -INTERFACES
