Control
CTN Caution
CTR Control zone
CU Cumulus
CUST Customs
CVFR Controlled VFR flight
CW Continuous wave
CWY Clearway
D
“d” Thickness of flexible pavement (replaced by PCN)
D… Danger area (followed by identification)
DA Decision altitude
DEC December
DEG Degrees
DEP Depart or departure
DEP Departure message
DER Departure end of runway
DES Descend to or descending to
DEST Destination
DETRESFA Distress phase
DF Direction Finder
DH Decision height
DIST Distance
DLA Delay message
DLA Delay or delayed
DME Distance measuring equipment
DNG Danger or dangerous
DOF Date of flight
DP Dew point temperature
DR Dead reckoning
DRG During
DRSN Drifting snwo
DTAM Descend to and maintain
DTG Date-time group
DTRT Deteriorate or deteriorating
DTW Dual tandem wheels
DUR Duration
DVOR Doppler VOR
DVORTAC Doppler VOR and TACAN
DW Dual wheels
DWD Deutscher Wetterdienst
DZ Drizzle
E
E East or eastern longitude
EAT Expected approach time
EEE Error
EET Estimated elapse time
EFAS Electronic flash approach light system
EHF Extremely high frequency (30000 to 300000 MHz
EL Elevation station
ELEV Elevation
ELT Emergency locator transmitter
EM Emission
EMBD Embedded
EMERG Emergency
En English
ENE East-northeast
ENR En-route (AIP Publication)
ENRT En-route
EOBT Estimated off-block time
EQPT Equipment
Es Spanish
ESE East-southeast
EST Estimate or estimated
ETA Estimated time of arrival or estimating arrival
ETD Estimated time of departure or estimating departure
ETO Estimated time over significant point
EUR European Region
Ev Every
EXC Except
EXER Exercise(s) or exercising or to exercise
EXP Expect or expected or expecting
EXTD Extend or extending
F
FAC Facilities
FAF French Air Force
FAF Final Approach Fix
FAL Facilitation of international air transport
FAP Final approach point
FATO Final approach and take-off area
FAWP Final approach waypoint
FBL Light (used to qualify icing, turbulence, interference or static reports)
FC Funnel cloud
FCST Forecast
FEB February
FG Fog
FIC Flight information centre
FIR Flight information region
FIS Flight information service
FL Flight level
FLG Flashing
FLT Flight
FLTCK Flight check
FLW Follow(s) or following
FLY Fly or flying
FM From
FNA Final approach
FLP Filed flight plan message
FPM Feet per minute
Fr French
FREQ Frequency
Fri Friday
FRNG Firing
FSL Full stop
