E-LSA
Experimental light-sport aircraft
EADI
Electronic Attitude Director Indicator
EAG 
European Action Group
EAS
Equivalent airspeed
EASA
European Aviation Safety Agency
EASO
European Aviation Suppliers Organisation
EATCHIP
European ATC Harmonisation and Integration Programme
EBAA
European Business Aviation Association
ECAC
European Civil Aviation Conference
ECAM
Electronic Centralised Aircraft Monitor
ECET
End of civil evening twilight
ECTAA
Group of National Travel Agents' and Tour Operators' Associations within the EU
EDI
Electronic Data Interchange
EFD
Electronic Flight Display
EFIS
Electronic Flight Instrument System
EFIS
Electronic Flight Instrument System
EGPWS
Enhanced Ground Proximity Warning System
EGPWS
Enhanced Ground Proximity Warning System
EGT
Exhaust Gas Temperature
EHSI
Electronic Horizontal Situation Indicator
EICAS
Engine Indication Crew Alerting System
EICAS
Engine Indicator and Crew Alert System
ELT
Emergency Locator Transmitter
ELT
Emergency Locator Transmitter
ENC
Electronic Noise Canceling
ENR
Electronic Noise Reduction
EPR
Engine Pressure Ratio
EPR
Engine Pressure Ratio
ERA
European Regions Airlines Association
ESA
Emergency Safe Altitude
ET
Electronic Ticketing
ETOP
Extended Range Twin Engine Operation
ETP
Equal Time Point
ETS
Emissions Trading Scheme
EU
European Union
EUROCAE
European Organisation for Civil Aviation Equipment
EUROCONTROL
European Organisation for the Safety of Air Navigation