AviationOnline for EASA Part-66 & Groundschool

AviationOnline
for EASA Part-66 & Groundschool

Aviation Glossary

An A-Z of all aviation abbreviations

This online glossary provides a comprehensive list of all major aviation abbreviations.


D

DA

decision altitude

DA

drift angle

DAR

digital AIDS recorder

dc

direct current

DCDU

datalink control and display unit

DCGF

data conversion gateway function

DCMF

data communication management function

DCMS

data communication management system

DCV

directional control valve

DDRMI

digital distance and radio magnetic indicator

ded

dedicated

DES

descent

DEST

destination

DFDAF

digital flight data acquisition function

DFDR

digital flight data recorder

DH

decision height

DI

DIR

direction

DISC

disconnect

disch

discharge

DIST

distance

DITS

digital information transfer system

DLGF

data load gateway function

DLODS

duct leak and overheat detection

DLS

data load system

DMC

display management computer

DME

distance measuring equipment

DMM

data memory module

DMS

debris monitoring sensor

DMU

data management unit

DSDL

dedicated serial data link

DSF

display system function

DSP

display select panel

DTG

distance to go

DU

display unit

E

EAI

engine anti-ice

EASA

European Aviation Safety Agency

ECAM

electronic centralised aircraft monitor

ECB

electronic control box

ECM

engine condition monitoring

ECP

ECAM control panel

ECS

environmental control system

ECSL

ECS card (left)

ECSMC

ECS miscellaneous card

ECSR

ECS card (right)

ECU

engine control unit

EDI

engine data interface

EDIF

engine data interface function

EDIU

engine data interface unit

EDP

engine driven pump

EE

EEC

electronic engine control

EEC

electronic engine controller

EEU

ELMS electronics unit

EFCS

electronic flight control system

EFIS

electronic flight instrument system

EFOB

estimated fuel on board

EGT

exhaust gas temperature

EICAS

engine indicating and crew alerting system

EIS

electronic instrument system

EIU

engine interface unit

EL

ELAC

elevator aileron computer

ELEC

electrics

ELMS

electronic load management system

EMC

entertainment multiplexer controller

EMER

emergency

EO

engine out

EP

external power

EPC

external power contactor

EPCS

electronic propulsion control system

EPR

engine pressure ratio

ER

ERP

eye reference point

ERU

ejector release unit

ERU

engine relay unit

ETA

estimated time of arrival

ETE

estimated time en route

ETOPS

extended range operation with two-engine aircraft

ETP

equal time point

EVMU

engine vibration monitoring unit

E/WD

engine/warning display