|
Contraction
|
Definition
|
Usage
|
|
E
|
east or eastern longitude
|
ICAO
|
|
E
|
Eastern Standard Time (time groups only)
|
NWS
|
|
E
|
ending of precipitation (time in
minutes) (weather reports only)
|
NWS
|
|
E
|
equatorial (air mass)
|
NWS
|
|
E/G
|
enginegenerator
|
GEN
|
|
E/R
|
exchange and repair
|
GEN
|
|
EACLN
|
expect approach clearance
|
ATC
|
|
EACNL
|
expect approach clearance not later than
|
ATC
|
|
EADIZ
|
entering air defense identification zone
|
ATC
|
|
EARTS
|
en route automated radar tracking system
|
GEN
|
|
EAS
|
equivalent airspeed
|
ATC
|
|
EAT
|
expected approach time
|
ATC
|
|
EB
|
eastbound
|
ICAO
|
|
EBND
|
eastbound
|
GEN
|
|
ECA
|
enter control area
|
ATC
|
|
ECAS
|
enter controlled airspace
|
ATC
|
|
ECD
|
except change departure to read
|
ATC
|
|
ECM
|
electronic counter measures
|
GEN
|
|
ECMSN
|
electronic counter measure mission
|
ATC
|
|
ECOM
|
en route communications
|
GEN
|
|
ECR
|
except change route to read
|
ATC
|
|
ECSP
|
electronic specialist
|
GEN
|
|
EDA
|
early departure authorized
|
GEN
|
|
EDC
|
expect departure clearance at
|
ATC
|
|
EDCT
|
estimated departure clearance (time)
|
ATC
|
|
EDR
|
expect departure release at
|
ATC
|
|
EEE
|
Error (to be used in AFS as a procedure
signal)
|
ICAO
|
|
EEM
|
electronic equipment modification
|
GEN
|
|
EENGR
|
electrical engineer
|
GEN
|
|
EEP
|
end exercise point
|
GEN
|
|
EET
|
estimated elapsed time
|
ICAO
|
|
EFA
|
entire field available
|
GEN
|
|
EFAS
|
en route flight advisory service
|
GEN
|
|
EFC
|
expect further clearance at
|
ATC
|
|
EFCT
|
effect
|
GEN
|
|
EFF
|
effective
|
GEN
|
|
EFR
|
expect further routing
|
ATC
|
|
EFTO
|
encrypt for transmission only
|
GEN
|
|
EG
|
emergency gear
|
GEN
|
|
EGECON
|
electronic geographic coordinator
navigation system
|
GEN
|
|
EHA
|
expect higher altitude
|
ATC
|
|
EHF
|
extremely high frequency (30000 to
300000 MHz)
|
ICAO
|
|
EIT
|
electronic installation technician
|
GEN
|
|
ELAT
|
estimated latitude
|
GEN
|
|
ELBA
|
emergency location beacon aircraft
|
ICAO
|
|
ELEC
|
electric
|
GEN
|
|
ELECN
|
electrician
|
GEN
|
|
ELEV
|
elevate or elevation
|
ICAO
|
|
ELIP
|
elliptical
|
GEN
|
|
ELMT
|
electronic mechanic technician
|
GEN
|
|
ELNGT
|
elongate
|
NWS
|
|
ELONG
|
estimated longitude
|
GEN
|
|
ELR
|
extra long range
|
ICAO
|
|
ELSW
|
elsewhere
|
GEN
|
|
ELT
|
emergency locator transmitter
|
GEN
|
|
EM
|
emission
|
ICAO
|
|
EMBD
|
embedded (in cloud layer)
|
ICAO
|
|
EMBDD
|
embedded
|
NWS
|
|
EMDO
|
Engineering and Manufacturing District
Office
|
GEN
|
|
EMERG
|
emergency
|
ICAO |
|
EMI
|
electronic maintenance inspector
|
GEN
|
|
EMSU
|
environment meteorological support unit
|
NWS
|
|
EMT
|
electronic maintenance technician
|
GEN
|
|
ENCTR
|
encounter
|
GEN
|
|
END
|
stopend (related to RVR)
|
ICAO
|
|
ENDCE
|
endurance
|
GEN
|
|
ENDG
|
ending
|
GEN
|
|
ENE
|
eastnorth east
|
ICAO
|
|
ENERN
|
eastnortheastern (weather reports only)
|
NWS
|
|
ENEWD
|
eastnortheastward (weather reports
only)
|
NWS
|
|
ENG
|
engine
|
ICAO
|
|
ENGR
|
engineer
|
GEN
|
|
ENHNCD
|
enhanced
|
GEN
|
|
ENHNCMNT
|
enhancement
|
GEN
|
|
ENR |
enroute
|
ICAO
|
|
ENRC
|
Enroute chart (followed by name/title)
|
ICAO
|
|
ENRT
|
en route
|
GEN
|
|
ENTR
|
entire
|
GEN
|
|
EOBT
|
estimated offblock time
|
ICAO
|
|
EOD
|
entered on duty
|
GEN
|
|
EOF
|
expected operations forecast
|
NWS
|
|
EP
|
en route penetration
|
ATC
|
|
EPI
|
expanded position indicator
|
ATC
|
|
EQCRT
|
equipment certified
|
GEN
|
|
EQPT
|
equipment
|
ICAO
|
|
EQUIP
|
equipment
|
GEN
|
|
ER
|
here
|
ICAO
|
|
ERAD
|
en route radar (broadband)
|
GEN
|
|
ERMG
|
en route metering
|
ATC
|
|
ERSP
|
en route spacing program
|
ATC
|
|
ERY
|
early
|
GEN
|
|
ESCAT
|
emergency security control of air
traffic
|
GEN
|
|
ESE
|
eastsouth east
|
ICAO
|
|
ESEC
|
en route secondary radar beacon
(broadband)
|
GEN
|
|
ESERN
|
eastsoutheastern (weather reports only)
|
NWS
|
|
ESEWD
|
eastsoutheastward (weather reports
only)
|
NWS
|
|
ESNTL
|
essential
|
GEN
|
|
ESP
|
en route sequencing program
|
ATC
|
|
EST
|
estimate or estimation
|
ICAO
|
|
ESTAB
|
establish
|
GEN
|
|
ESV
|
expanded service volume
|
GEN
|
|
ET
|
electronic technician
|
GEN
|
|
ETA
|
estimated time of arrival
|
GEN
|
|
ETARS
|
en route tracking automatic radar
service
|
ATC
|
|
ETC
|
et cetera
|
GEN
|
|
ETD
|
estimated time of departure
|
GEN
|
|
ETE
|
estimated time en route
|
GEN
|
|
ETFL
|
each thousand foot level
|
ATC
|
|
ETI
|
estimated information
|
ATC
|
|
ETIM
|
elapsed time
|
ATC
|
|
ETO
|
estimated time over significant point
|
ICAO
|
|
ETOV
|
estimated time over
|
ATC
|
|
ETP
|
estimated time of penetration
|
ATC
|
|
ETR
|
eastern test range
|
ATC
|
|
EU
|
electronic unit
|
GEN
|
|
EUO
|
emergency use only
|
GEN
|
|
EV
|
every
|
ICAO
|
|
EVAC
|
evacuation
|
GEN
|
|
EVAL
|
evaluate or evaluation
|
GEN
|
|
EVE
|
evening
|
GEN
|
|
EVS
|
electronic voice switching system
|
GEN
|
|
EVT
|
expect vector to
|
ATC
|
|
EXAM
|
examination
|
GEN
|
|
EXC
|
except
|
ICAO
|
|
EXCH
|
exchange
|
GEN
|
|
EXCLD
|
exclude
|
GEN
|
|
EXCLV
|
exclusive
|
GEN
|
|
EXCP
|
except
|
GEN
|
|
EXCT
|
execute
|
GEN
|
|
EXDLVY
|
expedite delivery
|
GEN
|
|
EXEC
|
executive
|
GEN
|
|
EXEC1
|
President on board civil aircraft
|
GEN
|
|
EXEC1F
|
President’s family is aboard aircraft
|
GEN
|
|
EXEC2
|
Vice President is aboard civil aircraft
|
GEN
|
|
EXEC2F
|
Vice President’s family is aboard
aircraft
|
GEN
|
|
EXER
|
exercise
|
ICAO
|
|
EXP
|
expect
|
ICAO
|
|
EXPC
|
expect
|
GEN
|
|
EXPED
|
expedite
|
GEN
|
|
EXPHO
|
expedite delivery by telephone
|
GEN
|
|
EXPS
|
express
|
GEN
|
|
EXQF
|
expanded quota flow
|
ATC
|
|
EXREP
|
expedite mail reply
|
GEN
|
|
EXSEC
|
extra section
|
GEN
|
|
EXSHI
|
expedite shipment
|
GEN
|
|
EXTD
|
extend
|
GEN
|
|
EXTN
|
extension
|
GEN
|
|
EXTRAP
|
extrapolate
|
NWS
|
|
EXTRM
|
extreme
|
NWS
|
|
EXTSV
|
extensive
|
GEN
|
