|
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
|
GEN
|
|
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
|
GEN
|
|
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
|
GEN
|
|
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
|
GEN
|
|
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
|
|
ETMS
|
enhanced
traffic management system
|
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 |