|
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
|
GEN
|
|
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
|
GEN
|
|
delay
|
DLA
|
GEN
|
|
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
|
GEN
|
|
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
|
|
direction
finder
|
DF
|
GEN
|
|
direction
finding station
|
DFSTN
|
GEN
|
|
Directives
Management Officer, FAA
|
DMO
|
GEN
|
|
director
|
DIR
|
GEN
|
|
disabled
|
DISABLD
|