|
Contraction
|
Definition
|
Usage
|
|
D
|
danger
area
|
ICAO
|
|
DA
|
decision
altitude
|
ICAO
|
|
DA
|
departure
approved
|
ATC
|
|
DAAR
|
deviation
approved as requested
|
ATC
|
|
DABRK
|
daybreak
|
NWS
|
|
DAE
|
district
airport engineer
|
GEN
|
|
DAIRE
|
direct
altitude and identification readout equipment
|
GEN
|
|
DALGT
|
daylight
|
GEN
|
|
DAP
|
do all
possible
|
GEN
|
|
DAPD
|
descend at
pilot’s discretion
|
ATC
|
|
DASI
|
digital
altimeter setting indicator
|
GEN
|
|
DATIS
|
Data link
automatic terminal information service
|
ICAO
|
|
DB
|
decibel
|
GEN
|
|
DB
|
describe
|
GEN
|
|
DBA
|
doing
business as
|
GEN
|
|
DBASI
|
digital
barometer altimeter setting indicator
|
GEN
|
|
DBL
|
double
|
GEN
|
|
DBTF
|
doubtful
|
GEN
|
|
DC
|
direct
current
|
GEN
|
|
DCA
|
Defense Communications
Agency
|
GEN
|
|
DCAVU
|
clear or
scattered clouds and visibility greater than ten, remainder of report
missing (weather reports only)
|
NWS
|
|
DCD
|
double
channel duplex
|
ICAO
|
|
DCF
|
deputy
chief
|
GEN
|
|
DCKG
|
docking
|
ICAO
|
|
DCLRT
|
decelerate
|
ATC
|
|
DCM
|
defense
combat maneuvers
|
ATC
|
|
DCMSN
|
decommission
|
GEN
|
|
DCMT
|
document
|
GEN
|
|
DCPC
|
Direct
controllerpilot communications
|
ICAO
|
|
DCR
|
decrease
|
GEN
|
|
DCRZ
|
descend to
and cruise
|
ATC
|
|
DCS
|
defense
communications system
|
GEN
|
|
DCS
|
double
channel simplex
|
GEN
|
|
DCT
|
direct
|
ICAO
|
|
DDM
|
difference
in depth of modulation
|
GEN
|
|
DE
|
From (used
to precede the call sign of the calling station)
|
ICAO
|
|
DECCO
|
Defense
Commercial Communications Office
|
GEN
|
|
DEF
|
defense
|
GEN
|
|
DEFCON
|
Defense
Readiness Conditions
|
GEN
|
|
DEG
|
degree
|
GEN
|
|
DELPHO
|
deliver by
telephone
|
GEN
|
|
DEMOL
|
demolition
|
GEN
|
|
DENEB
|
fog
dispersal operations
|
ICAO
|
|
DEP
|
depart
|
ATC
|
|
DEP
|
departure
|
GEN
|
|
DEPT
|
department
|
GEN
|
|
DES
|
descend to
or descending to
|
ICAO
|
|
DESTN
|
destination
|
GEN
|
|
DETRESFA
|
Distress
Phase Code (Alerting Service)
|
ATC
|
|
DEV
|
deviation
|
ATC
|
|
DEW
|
distant
early warning
|
GEN
|
|
DEWIZ
|
distant
early warning identification zone
|
GEN
|
|
DF
|
direction
finder
|
GEN
|
|
DFCLT
|
difficult
|
GEN
|
|
DFDR
|
Digital
flight data recorder
|
ICAO
|
|
DFL
|
daily
flight log
|
GEN
|
|
DFNT
|
definite
|
GEN
|
|
DFRS
|
differs
|
GEN
|
|
DFSTN
|
direction
finding station
|
GEN
|
|
DFTI
|
distance
from touchdown indicator
|
GEN
|
|
DFUS
|
diffuse
|
GEN
|
|
DGCGO
|
dangerous
cargo
|
GEN
|
|
DGNL
|
diagonal
|
GEN
|
|
DGR
|
danger
|
GEN
|
|
DH
|
decision
height
|
GEN
|
|
DI
|
delay
indefinite
|
ATC
|
|
DI
|
departure
approval request for IFR flight
|
ATC
|
|
DIAM
|
diameter
|
GEN
|
|
DIF
|
diffuse
|
ICAO
|
|
DIR
|
director
|
GEN
|
|
DISABLD
|
disabled
|
GEN
|
|
DISC
|
discontinue
|
GEN
|
|
DISEM
|
disseminate
|
GEN
|
|
DIST
|
distance
|
ICAO
|
|
DIST
|
district
|
GEN
|
|
DISTR
|
distribute
|
GEN
|
|
DIV
|
divert
|
ICAO
|
|
DIV
|
division
|
GEN
|
|
DKTS
|
Dakotas
|
NWS
|
|
DLA
|
delay
|
GEN
|
|
DLAC
|
delay
account of
|
ATC
|
|
DLAT
|
delay time
|
ATC
|
|
DLC
|
delay
clearance or delayed clearance
|
ATC
|
|
DLIC
|
Data link
initiation capability
|
ICAO
|
|
DLT
|
delete
|
GEN
|
|
DLVR
|
deliver
|
GEN
|
|
DLVY
|
delivery
|
GEN
|
|
DLY
|
daily
|
GEN
|
|
DLY
|
Daily
|
ICAO
|
|
DMAAC
|
Defense
Mapping Agency Aerospace Center
|
GEN
|
|
DMAHC
|
Defense
Mapping Agency Hydrographic Center
|
GEN
|
|
DME
|
distance
measuring equipment
|
GEN
|
|
DMEG
|
DMEcollocated
with glide slope
|
GEN
|
|
DMEL
|
DMEcollocated
with localizer
|
GEN
|
|
DMER
|
DMEtactical
air navigation with DME only commissioned
|
GEN
|
|
DMEV
|
DMEcollocated
with VOR
|
GEN
|
|
DMG
|
damage
|
GEN
|
|
DMNT
|
dominant
|
GEN
|
|
DMO
|
Directives
Management Officer, FAA
|
GEN
|
|
DMSH
|
diminish
|
NWS
|
|
DMSTN
|
demonstration
|
GEN
|
|
DNA
|
Defense
Nuclear Agency
|
GEN
|
|
DNG
|
danger
|
ICAO
|
|
DNS
|
dense
|
NWS
|
|
DNSLP
|
downslope
|
NWS
|
|
DNSTRM
|
downstream
|
NWS
|
|
DNWND
|
downwind
|
ATC
|
|
DO
|
Deputy
Commander for Operations
|
GEN
|
|
DO
|
ditto
|
GEN
|
|
DOB
|
date of
birth
|
GEN
|
|
DOC
|
Department
of Commerce
|
GEN
|
|
DOD
|
Department
of Defense
|
GEN
|
|
DOE
|
Department
of Energy
|
GEN
|
|
DOLLY
|
data link
|
GEN
|
|
DOM
|
domestic
|
ICAO
|
|
DOT
|
Department
of Transportation
|
GEN
|
|
DOT1
|
Transport
OneSecretary of Transportation
|
ATC
|
|
DOT2
|
Transport
TwoDeputy Secretary of Transportation
|
ATC
|
|
DP
|
deep
|
NWS
|
|
DP
|
dew point
temperature
|
ICAO
|
|
DPCR
|
departure
procedure
|
ATC
|
|
DPNG
|
deepening
|
NWS
|
|
DPT
|
depth
|
ICAO
|
|
DPTH
|
depth
< |