Acronyms
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E
| Acronym | Meaning | Source |
| E | East, East Longitude | AIS |
| E E E | Error (to be used in AFS as a procedure signal) | ICAO |
| EASA | European Aviaton Safety Agency | |
| EAT | Expected Approach Time | AIS |
| EB | Eastbound | AIS |
| ECAR | European Civil Aviation Requirement (formerly JAR) | |
| EDTO | Extended Diversion Time Operations | |
| EET | Estimated Elapsed Time | AIS |
| EFB | Electronic Flight Bag | |
| EFC | Expect further clearance | ICAO |
| EGNOS | European Geostationary Navigation Overlay System | |
| EGPWS | Enhanced Ground Proximity Warning System | CAR 1988 |
| EHF | Extremely high frequency (30,000 to 300,000 MHz) | ICAO/AIP |
| EHR | Encumbrance Holder Register | CASR Part 47 |
| ELBA | Emergency locator beacon-aircraft | ICAO |
| ELEV | Elevation | AIS |
| ELR | Extra Long Range | AIS |
| ELT(S) | Emergency Locator Transmitter (Survival) | CAR 1988 |
| EM | Engine Manual | WATOG |
| EM | Explanatory Memorandum (submitted to EXCO with regulation amendment) | |
| EM | Emission | AIS |
| EMBD | Embedded in a Layer (to indicate cumulonimbus embedded in layers of other clouds) | AIS |
| EMERG | Emergency | AIS |
| EMS | Emergency Medical Service | |
| EMS | Environment Management System | |
| END | Stop-end (related to RVR) | ICAO |
| ENDCE | Endurance | AIS |
| ENE | East North-East | AIS |
| ENG | Engine | AIS |
| ENR | En Route | AIS |
| ENRC | En Route Chart (followed by name/title) | AIS |
| EOBT | Estimated off Blocks Time | AIS |
| EPA | Environment Protection Agency | |
| EPIRB | Electronic Position Indicating Radio Beacon (marine term.) | AIS |
| EQPT | Equipment | AIS |
| ER | Here..or herewith | ICAO |
| ERC | En-route Chart | AIS |
| ERP | Emergency Response Plan | |
| ERSA | En-route Supplement Australia | AIP |
| ES | Explanatory Statement (tabled with regulations in Parliament) | |
| ESD | Electrostatic sensitive discharge | |
| ESDE | ESD equipment | |
| ESE | East Southeast | AIS |
| ESIR | Electronic safety incident report | |
| EST | Estimate or estimated or estimate (message type designator) | AIS |
| ETA | Estimated Time of Arrival, Estimating Arrival | AIS |
| ETCM | Engine trend and condition monitoring | |
| ETD | Estimated Time of Departure, Estimating Departure | AIS |
| ETO | Estimated Time Over significant point | AIS |
| ETOPS | Extended range operations by turbine-engined aeroplanes | ICAO |
| ETP | Equi Time Interval | |
| ETT | Estimated Time Interval | |
| EV | Every | AIS |
| EVU | Enforceable Voluntary Undertaking | Section 30DK of the Civil Aviation Act 1988 |
| EXC | Except | AIS |
| EXCO | Executive Council | |
| EXCOS | Executive Council Secretariat | |
| EXER | Exercises, Exercising, to exercise | AIS |
| EXP | Expect, Expected, Expecting | AIS |
| EXTD | Extend, Extending, Extended | AIS |