EICAS ENGINE INDICATION AND CREW ALERTING SYSTEM
EIPC ENGINE ILLUSTRATED PARTS CATALOG
EIS ELECTRONIC INSTRUMENT SYSTEM
EIS ENGINE INSTRUMENT SYSTEM
EIS ENTRY INTO SERVICE
EIU ELECTRONIC INSTRUMENT UNIT
EIU ENGINE INTERFACE UNIT
EIVMU ENGINE INTERFACE AND VIBRATION MONITORING UNIT
EL ELECTRO LUMINESCENT
EL ELEVATION
EL ELEVATOR
EL EQUIPMENT LIST
ELA ELECTRICAL LOAD ANALYSIS
ELAC ELEVATOR AND AILERON COMPUTER
ELAPS ELAPSED TIME
ELC ELECTRONIC LIBRARY COMPUTER
ELDOR ELECTRONIC DOCUMENT RETRIEVAL
ELEC ELECTRIC / ELECTRICAL
ELECS ELECTRONICS
ELEM ELEMENT
ELEV ELEVATION ELEVATOR
ELM EXTENDED LENGTH MESSAGE
ELS ELECTRONIC LIBRARY SYSTEM
ELT EMERGENCY LOCATOR TRANSMITTER
ELV ELEVATION
EM END OF MEDIUM
EM ENGINE MANUAL
EMC ELECTRO MAGNETIC COMPATIBILITY
EMER GEN EMERGENCY GENERATOR
EMER EMERGENCY
EMF ELECTROMOTIVE FORCE
EMI ELECTRO MAGNETIC INTERFERENCES
EMLS EMERGENCY LIGHTING SYSTEM
EMP ELECTRO MAGNETIC PULSE
EMP EMPENAGE
EMRG EMERGENCY
EMU ENGINE MAINTENANCE UNIT
EMU ENGINEERING MOCK-UP
EN EURO NORM
ENB ENABLE
ENBL ENABLE
ENCD ENCODE
ENCDR ENCODER
ENCL ENCLOSURE
END ENDURANCE
ENG OUT ENGINE OUT
ENG ENGAGE
ENG ENGINE
ENGA ENGAGE
ENGD ENGAGED
ENGR ENGINEER
ENQ ENQUIRE
ENRGZ ENERGIZE
ENT ENTRY
ENTR ENTRANCE
ENV ENVELOPE
EO SID ENGINE OFT STANDARD INSTRUMENT DEPARTURE
EO THR RED ENGINE OTF THRUST REDUCTION
EO THR RED ENGINE OUT THRUST REDUCTION
Aircraft Systems - Abbreviations and Acronyms 25

EO ENGINE OFF
EO ENGINE OUT
EO ENGINEERING ORDER
EOH ENGINE OPERATING HOURS
EOP END OF PART
EOT END OF TAPE
EOT END OFF TRANSMISSION
EP ENTRY PANEL
EPC EXTERNAL POWER CONTACTOR
EPCU EXTERNAL POWER CONTROL UNIT