Aviation Maintenance Terms beginning with E
E/E
Or E & E Electrical/Electronic
E1-1
First Shelf, Number 1 Equipment Rack
E2-2
Second Shelf, Number 2 Equipment Rack
EADF
Electronic Automatic Direction Finder
EADI
Electronic Attitude-director Indicator
EADI
Electronic Attitude Director Indicator.
EAROM
Electrically Alterable Read-only Memory
EAS
Equivalent airspeed.
EASA
European Aviation Safety Agency
EC
EICAS Computer
ECAM
Electronic Centralized Aircraft Monitoring
ECAM
Electronic Centralized Aircraft Monitor.
EDSP
EICAS Display Select Panel
EDU
EICAS Display Unit
EEC
Electronic Engine Control
EEC
Electronic engine control. An electronic fuel control for a gas turbine engine. The EEC senses the power-lever angle (PLA) engine RPM, bleed valve, and variable stator vane position, and the various engine pressures and temperatures. It meters the correct amount of fuel to the nozzles for all flight conditions, to prevent turbine over-speed and over- temperature.
EFI
Electronic Flight Instrument
EFIS
Electronic Flight Instrument System
EFIS
Electronic Flight Instrument System
EFIS
Electronic Flight Instrument System.
EFISCP
EFIS Control Panel
EFISCU
EFIS Comparator Unit
EFISG EFIS
Symbol Generator
EFISRLS EFIS
Remote Light Sensor
EGT
Exhaust gas temperature. The temperature of the gases as they leave the cylinder of a reciprocating engine or the turbine of a gas turbine engine.
EHSI
Electronic Horizontal-situation Indicator
EHSI
Electronic Horizontal Situation Indicator.
EHSID
Electronic Horizontal-situation Indicator Display
EHSV
Electrohydraulic Servo Value
EICAS
Engine Indicating and Crew Alerting System
EICAS
Engine Indicating and Crew Alerting System.
EICAS
Engine indicating and crew alerting system. An electronic instrumentation system that monitors airframe and engine parameters and displays the essential information on a video display on the instrument panel. Only vital information is continually displayed, but when any sensed parameters fall outside of their allowable range of operation, they are automatically displayed.
ELCU
Electrical Load Control Unit
ELEC
Electric; Electronic
ELECT
Electrical
ELEX
Electronics; Electrical
ELT
Emergency Locator Transmitter
ELT (emergency locator transmitter)
A self-contained radio transmitter that automatically begins transmitting on the emergency frequencies any time it is triggered by a severe impact parallel to the longitudinal axis of the aircraft.
EMC
Electro Magnetic Compatibility
EMER GEN
Emergency Generator
emf
Electromotive Force
EMFI
Electromechanical Flight Instrument
EMI
Electromagnetic Interference
EMI
Electromagnetic Interference
EMI
Electromagnetic interference.
EP
External Power
EP AVAIL
External Power Available
EPC
External Power Contactor
EPCS
Electronic Power Control Switch
EPR
Engine pressure ratio. The ratio of the turbine discharge total pressure to the compressor inlet total pressure. EPR is normally used as the parameter to determine the amount of thrust an axial-flow turbojet or turbofan engine is producing.
EPROM
Erasable Programmable Read-only Memory
EPU
Estimated Position Uncertainty
ESHP
Equivalent shaft horsepower. A measure of the power produced by a turboprop engine. ESHP takes into consideration both the shaft horsepower delivered to the propeller and the thrust developed at the engine exhaust. Under static conditions, one shaft horsepower is approximately equal to 2.5 pounds of thrust.
ETFE
A copolymer of PTFE and polyethylene. Frequently referred to by the trade name, Tefzel™.
EUROCAE
European Organization for Civil Aviation Equipment
eV
Electron Volt
EVAcq
Enhanced Visual Acquisition
EWIS
As defined by§ 25.1701 of this chapter, electrical wiring interconnection system.
EXCTR
Exciter
EXT PWR
External Power
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