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6 – i ndex
DPT
Depth
#DR
DeadReckoning
DR...
LowDrifting (followed byDU
=dust, SN=snowSA= sand
DRG
During
DS
Duststorm
DTAM
Descend toAndMaintain
DTG
Date-TimeGroup
DTHR
DisplacedRunwayThreshold
DTRT
Deteriorate, Deteriorating
DU
Dust
DUC
DenseUpper Cloud
DUR
Duration
D-VOLMET Data LinkVOLMET
DVOR
Doppler VOR
DZ
Drizzle
E
E
East, East Longitude
EAT
ExpectedApproachTime
EB
Eastbound
#EET
EstimatedElapsedTime
EHF
ExtremelyHighFrequency
(30 000 to 300 000MHZ)
ELEV
Elevation
ELR
Extra LongRange
#ELT
Emergency Locator Transmitter
EM
Emission
EMBD
Embedded in a Layer (to
indicate cumulonimbus
embedded in layers of other
clouds)
EMERG
Emergency
ENDCE
Endurance
ENE
East North-East
ENG
Engine
ENR
EnRoute
ENRC
EnRouteChart (followed by
name/title)
EOBT
Estimated off BlocksTime
+EPIRB
ElectronicPosition Indicating
RadioBeacon (marine term)
EQPT
Equipment
#ERC
EnRouteChart
+#ERSA
EnRouteSupplementAustralia
ESE
East South-East
EST
Estimate, estimate asmessage
type indicator
#ETA
EstimatedTime ofArrival,
EstimatingArrival
#ETD
EstimatedTime of Departure,
EstimatingDeparture
ETO
EstimatedTimeOver significant
point
ETOPS ExtendedRangeOperations by
abbreviations and acronyms
CODE DEFINITION
CODE DEFINITION