|
Definition
|
Contraction
|
Usage
|
|
Daily
|
DLY
|
GEN
|
|
Daily
|
DLY
|
ICAO
|
|
daily flight log
|
DFL
|
GEN
|
|
Dakotas
|
DKTS
|
NWS
|
|
damage
|
DMG
|
GEN
|
|
danger
|
DGR
|
GEN
|
|
danger
|
DNG
|
ICAO
|
|
danger area
|
D
|
ICAO
|
|
dangerous cargo
|
DGCGO
|
GEN
|
|
data link
|
DOLLY
|
GEN
|
|
Data link automatic terminal information
service
|
DATIS
|
ICAO
|
|
Data link initiation capability
|
DLIC
|
ICAO
|
|
Data link VOLMET
|
DVOLMET
|
ICAO
|
|
data terminal equipment
|
DTE
|
GEN
|
|
data transmission feature
|
DTF
|
GEN
|
|
data transmission request
|
DTR
|
GEN
|
|
date of birth
|
DOB
|
GEN
|
|
date time group
|
DTG
|
GEN
|
|
Davide J. Hurley ATC Systems Command
Center
|
ATCSCC
|
GEN
|
|
daybreak
|
DABRK
|
NWS
|
|
daylight
|
DALGT
|
GEN
|
|
dead reckoning
|
DR
|
ATC
|
|
decelerate
|
DCLRT
|
ATC
|
|
decibel
|
DB
|
GEN
|
|
decision altitude
|
DA
|
ICAO
|
|
decision height
|
DH
|
ICAO
|
|
decommission
|
DCMSN
|
GEN
|
|
decrease
|
DCR
|
GEN
|
|
deep
|
DP
|
NWS
|
|
deepening
|
DPNG
|
NWS
|
|
defense
|
DEF
|
GEN
|
|
defense combat maneuvers
|
DCM
|
ATC
|
|
Defense Commercial Communications Office
|
DECCO
|
GEN
|
|
Defense Communications Agency
|
DCA
|
GEN
|
|
defense communications system
|
DCS
|
GEN
|
|
Defense Mapping Agency Aerospace Center
|
DMAAC
|
GEN
|
|
Defense Mapping Agency Hydrographic
Center
|
DMAHC
|
GEN
|
|
Defense Nuclear Agency
|
DNA
|
GEN
|
|
Defense Readiness Conditions
|
DEFCON
|
GEN
|
|
Defense Switching Network
|
DSN
|
GEN
|
|
defense VFR
|
DVFR
|
GEN
|
|
definite
|
DFNT
|
GEN
|
|
degree
|
DEG
|
ICAO
|
|
delay
|
DLA
|
ICAO
|
|
delay account of
|
DLAC
|
ATC
|
|
delay clearance or delayed clearance
|
DLC
|
ATC
|
|
delay indefinite
|
DI
|
ATC
|
|
delay time
|
DLAT
|
ATC
|
|
delayed
|
RTD
|
ICAO
|
|
delete
|
DLT
|
GEN
|
|
deliver
|
DLVR
|
GEN
|
|
deliver by telephone
|
DELPHO
|
GEN
|
|
delivery
|
DLVY
|
GEN
|
|
demolition
|
DEMOL
|
GEN
|
|
demonstration
|
DMSTN
|
GEN
|
|
dense
|
DNS
|
NWS
|
|
dense upper cloud
|
DUC
|
ICAO
|
|
depart
|
DEP
|
ATC
|
|
department
|
DEPT
|
GEN
|
|
Department of Commerce
|
DOC
|
GEN
|
|
Department of Defense
|
DOD
|
GEN
|
|
Department of Energy
|
DOE
|
GEN
|
|
Department of Transportation
|
DOT
|
GEN
|
|
departure
|
DEP
|
ICAO |
|
departure approval request for IFR
flight
|
DI
|
ATC
|
|
departure approved
|
DA
|
ATC
|
|
departure procedure
|
DPCR
|
ATC
|
|
Deployment Readiness Review
|
DRR
|
ATC
|
|
depth
|
DPT
|
ICAO
|
|
depth
|
DPTH
|
NWS
|
|
deputy chief
|
DCF
|
GEN
|
|
Deputy Commander for Operations
|
DO
|
GEN
|
|
descend
|
DSND
|
ATC
|
|
descend at pilot’s discretion
|
DAPD
|
ATC
|
|
descend immediately
|
DSNDI
|
ATC
|
|
descend so as to cross
|
DSATX
|
ATC
|
|
descend so as to reach
|
DSATR
|
ATC
|
|
descend to and cross
|
DTAX
|
ATC
|
|
descend to and cruise
|
DCRZ
|
ATC
|
|
descend to and maintain
|
DTAM
|
ATC
|
|
descend to or descending to
|
DES
|
ICAO
|
|
descend well to right
|
DWTR
|
ATC
|
|
descend well to right of course
|
DWRC
|
ATC
|
|
descent
|
DSCNT
|
ATC
|
|
describe
|
DB
|
GEN
|
|
designate a friction value representing
runway surface conditions (Greek letter)
|
MU
|
GEN
|
|
designated
|
DSGND
|
GEN
|
|
desire
|
DSR
|
GEN
|
|
destination
|
DESTN
|
GEN
|
|
destined
|
DSTND
|
ATC
|
|
detail
|
DTL
|
GEN
|
|
deteriorate
|
DTRT
|
NWS
|
|
determine
|
DTRM
|
GEN
|
|
develop
|
DVLP
|
GEN
|
|
deviation
|
DEV
|
ATC
|
|
deviation approved as requested
|
DAAR
|
ATC
|
|
dew point
|
DWPNT
|
NWS
|
|
dew point temperature
|
DP
|
ICAO
|
|
diagonal
|
DGNL
|
GEN
|
|
diameter
|
DIAM
|
GEN
|
|
difference in depth of modulation
|
DDM
|
GEN
|
|
differs
|
DFRS
|
GEN
|
|
difficult
|
DFCLT
|
GEN
|
|
diffuse
|
DFUS
|
GEN
|
|
diffuse
|
DIF
|
ICAO
|
|
digital altimeter setting indicator
|
DASI
|
GEN
|
|
digital barometer altimeter setting
indicator
|
DBASI
|
GEN
|
|
Digital flight data recorder
|
DFDR
|
ICAO
|
|
diminish
|
DMSH
|
NWS
|
|
Diplomatic Telecommunications Service
|
DTS
|
GEN
|
|
direct
|
DCT
|
ICAO
|
|
direct
|
DRCT
|
GEN
|
|
direct altitude and identification
readout equipment
|
DAIRE
|
GEN
|
|
Direct controllerpilot communications
|
DCPC
|
ICAO
|
|
direct current
|
DC
|
GEN
|
|
direct readout infrared
|
DRIR
|
GEN
|
|
direct route
|
DR
|
GEN
|
|
direct user access terminal system
|
DUATS
|
GEN
|
|
direction
|
DRCTN
|
GEN
|
|
Directives Management Officer, FAA
|
DMO
|
GEN
|
|
director
|
DIR
|
GEN
|
|
disabled
|
DISABLD
|
GEN
|
|
discontinue
|
DISC
|
GEN
|
|
dispersal
|
DSPRL
|
GEN
|
|
displace
|
DSPLC
|
GEN
|
|
Displaced runway threshold
|
DTHR
|
ICAO
|
|
display
|
DSPL
|
GEN
|
|
disposition
|
DSPN
|
GEN
|
|
disregard
|
DSRGD
|
GEN
|
|
disseminate
|
DISEM
|
GEN
|
|
dissipate
|
DSIPT
|
NWS
|
|
distance
|
DIST
|
ICAO
|
|
distance
|
DSTC
|
GEN
|
|
distance from touchdown indicator
|
DFTI
|
GEN
|
|
distance measuring equipment
|
DME
|
ICAO
|
|
Distance Root Mean Square
|
DRMS
|
ATC
|
|
distant
|
DSNT
|
GEN
|
|
distant early warning
|
DEW
|
GEN
|
|
distant early warning identification
zone
|
DEWIZ
|
GEN
|
|
distinguished visitors
|
DV
|
GEN
|
|
distort
|
DST
|
GEN
|
|
Distress Phase Code (Alerting Service)
|
DETRESFA
|
ATC
|
|
distribute
|
DISTR
|
GEN
|
|
district
|
DIST
|
GEN
|
|
district airport engineer
|
DAE
|
GEN
|
|
ditto
|
DO
|
GEN
|
|
diverge
|
DVRG
|
GEN
|
|
diversion
|
DVRSN
|
GEN
|
|
divert
|
DIV
|
ICAO
|
|
division
|
DIV
|
GEN
|
|
DMEcollocated with glide slope
|
DMEG
|
GEN
|
|
DMEcollocated with localizer
|
DMEL
|
GEN
|
|
DMEcollocated with VOR
|
DMEV
|
GEN
|
|
DMEtactical air navigation with DME
only commissioned
|
DMER
|
GEN
|
|
do all possible
|
DAP
|
GEN
|
|
do not pass to Air Defense radar
|
NOPAR
|
ATC
|
|
Do you intend to ask me for a series of
bearings? Or I intend to ask you for a
series of bearings
|
QDL
|
ICAO
|
|
docking
|
DCKG
|
ICAO
|
|
document
|
DCMT
|
GEN
|
|
doing business as
|
DBA
|
GEN
|
|
domestic
|
DOM
|
ICAO
|
|
domestic services (island operations)
|
DS
|
GEN
|
|
dominant
|
DMNT
|
GEN
|
|
doppler VHF omnidirectional radio range
|
DVOR
|
ICAO
|
|
double
|
DBL
|
GEN
|
|
double channel duplex
|
DCD
|
ICAO
|
|
double channel simplex
|
DCS
|
GEN
|
|
double sideband
|
DSB
|
ICAO
|
|
doubtful
|
DBTF
|
GEN
|
|
downdrafts
|
DWNDFTS
|
NWS
|
|
downslope
|
DNSLP
|
NWS
|
|
downstream
|
DNSTRM
|
NWS
|
|
downward vertical velocity
|
DVV
|
NWS
|
|
downwind
|
DNWND
|
ATC
|
|
drawing
|
DWG
|
GEN
|
|
drift
|
DRFT
|
NWS
|
|
drizzle
|
DRZL
|
NWS
|
|
drizzle
|
DZ
|
ICAO
|
|
dual tandem wheels
|
DTW
|
ICAO
|
|
dual wheels
|
DW
|
ICAO
|
|
duplex
|
DX
|
GEN
|
|
duplicate
|
DUPE
|
GEN
|
|
duration
|
DUR
|
ICAO
|
|
duration
|
DURN
|
GEN
|
|
during
|
DRG
|
ICAO
|
|
during
|
DURG
|
GEN
|
|
during climb
|
DURC
|
ATC
|
|
during descent
|
DURD
|
ATC
|
|
dust devils
|
PO
|
METAR
|
|
dust storm
|
DS
|
METAR
|
|
duststorm, sandstorm, rising dust or
sand
|
SA
|
METAR
|
