GEN 2.2Skammstafanir notaðar í AIS-útgáfu Abbreviations Used in AIS Publications

* Ef skammstöfun er frábrugðin ICAO Doc 8400 eða er ekki tiltekin þar er hún stjörnumerkt.
Abbreviations marked with an asterisk are either different from or not contained in ICAO Doc 8400.

† Í talfjarskiptum eru skammstafanir og orðalag flutt sem talað orð.
When radiotelephony is used, the abbreviations and terms are transmitted as spoken words.

‡ Í talfjarskiptum eru skammstafanir og orðalag flutt sem einstakir bókstafir.
When radiotelephony is used, the abbreviations and terms are transmitted using the individual letters in non phonetic form.

A - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
...CCentre (preceded by runway designation number to identify a parallel runway)
C - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
...LLeft (preceded by runway designation number to identify a parallel runway)
L - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
...MMetres (preceded by figures)
M - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
...RRight (preceded by runway designation number to identify a parallel runway)
R - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
...TTrue (preceded by a bearing to indicate reference to True North)
T - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
...V...Variations from the mean wind direction (preceded and followed by figures in METAR/SPECI, e.g. 350V070)
V - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
AAlfa*
AAmber
AAmperes*
AAuto-tuned NAVAID*
A/AAir-to-air
A/GAir-to-ground
AAAll after...*
AAA(or AAB, AAC... etc., in sequence) Amended meteorological message (message type designator)
AADAssigned altitude deviation
AAIMAircraft autonomous integrity monitoring
AALAbove aerodrome level
AARAir to air refuelling
ABAll before...*
ABIAdvance boundary information
ABMAbeam
ABNAerodrome beacon
ABTAbout
ABVAbove
ACAdvisory Circular*
ACAlternate Current*
ACAltocumulus
ACARS(to be pronounced “AY-CARS”) Aircraft communication addressing and reporting system
ACAS(to be pronounced “AY-CAS”) Airborne collision avoidance system
ACC‡ Area control centre or area control
ACCIDNotification of an aircraft accident
ACFTAircraft
ACKAcknowledge
ACLAltimeter check location
ACNAircraft classification number
ACPAcceptance (message type designator)
ACPTAccept or accepted
ACTActive or activated or activity
ADAerodrome
ADAAdvisory area
ADCAerodrome chart
ADDNAddition or additional
ADF‡ Automatic direction-finding equipment
ADIZ† Air defence identification zone
ADJAdjacent
ADRAdvisory route
ADSAutomatic dependent surveillance*
ADSAddress (when this abbreviation is used to request a repetition, the question mark (IMI) precedes the abbreviation, e.g. IMI ADS) (to be used in AFS as a procedure signal)
ADS-B‡ Automatic Dependent Surveillance — broadcast
ADS-C‡ Automatic dependent surveillance — contract
ADSUAutomatic dependent surveillance unit
ADVSAdvisory service
ADZAdvise
AESAircraft earth station
AFCArea forecast centre*
AFILFlight plan filed in the air
AFISAerodrome flight information service
AFMYes or affirm or affirmative or that is correct
AFSAeronautical fixed service
AFT...After (followed by time or place)
AFTN‡ Aeronautical fixed telecommunication network
AGAAerodromes, air routes and ground aids
AGLAbove ground level
AGNAgain
AICAeronautical information circular
AIDCAir traffic services interfacility data communications
AIMAeronautical information management
AIPAeronautical information publication
AIRACAeronautical information regulation and control
AIREP† Air-report
AIRMET† Information concerning en-route weather phenomena which may affect the safety of low-level aircraft operations
AISAeronautical information services
ALAAlighting area
ALERFA† Alert phase
ALRAlerting (message type designator)
ALSApproach lighting system
ALTAltitude
ALTNAlternate or alternating (light alternates in colour)
ALTNAlternate (aerodrome)
AMDAmend or amended
AMDTAmendment (AIP Amendment)
AMSAeronautical mobile service
AMSLAbove mean sea level
AMSSAeronautical mobile satellite service
ANC...Aeronautical chart — 1:500 000 (followed by name/title)
ANCS...Aeronautical navigation chart — small scale (followed by name/title and scale)
ANSAnswer
AOAircraft operator
AOC...Aerodrome obstacle chart (followed by type and name/title)
APAirport
APAPI(to be pronounced “AY-PAPI”) Abbreviated precision approach path indicator
APCHApproach
APDC...Aircraft parking/docking chart (followed by name/title)
APNApron
APPApproach control office or approach control or approach control service
APRApril
APRXApproximate or approximately
APSGAfter passing
APUAuxiliary power unit
APVApproach procedure with vertical guidance
AREnd of transmission*
ARCArea chart
ARFFAircraft Rescue and Fire Fighting*
ARFORArea forecast* (in aeronautical meteorological code)
ARMETForecast upper wind and temperature at specified points* (in aeronautical meteorological code)
ARNGArrange
AROAir traffic services reporting office
ARPAerodrome reference point
ARPAir-report (message type designator)
ARQAutomatic error correction
ARRArrival (message type designator)
ARRArrive or arrival
ARSSpecial air-report (message type designator)
ARSTArresting (specify (part of) aircraft arresting equipment)
ASAltostratus
ASWait*
ASAPAs soon as possible
ASCAscent to or ascending to
ASDAAccelerate-stop distance available
ASEAltimetry system error
ASHTAMSpecial series NOTAM notifying by means of a specific format change in activity of a volcano,
a volcanic eruption and/or volcanic ash cloud that is of significance to aircraft operations
ASPHAsphalt
AT-VASIS(to be pronounced “AY-TEE-VASIS”) Abbreviated T visual approach slope indicator system
AT...At (followed by time at which weather change is forecast to occur)
ATA‡ Actual time of arrival
ATC‡ Air traffic control (in general)
ATCSMAC...Air traffic control surveillance minimum altitude chart (followed by name/title)
ATD‡ Actual time of departure
ATFMAir traffic flow management
ATIS(to be pronounced “AY-TIS”) Automatic terminal information service
ATMAir traffic management
ATNAeronautical telecommunication network
ATP...At (followed by time or place)
ATSAir traffic services
ATTNAttention
ATZAerodrome traffic zone
AUGAugust
AUTHAuthorized or authorization
AUTOAutomatic
AUWAll up weight
AUXAuxiliary
AVASISAbbreviated visual approach slope indicator system*
AVBLAvailable or availability
AVGAverage
AVGAS† Aviation gasoline
AWOSAutomated weather observation system
AWTAAdvise at what time able
AWYAirway
AZMAzimuth
B - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
BBlue
BBravo*
BABraking action
BARO-VNAV(to be pronounced “BAA-RO-VEENAV”) Barometric vertical navigation
BASE† Cloud base
BCFGFog patches
BCNBeacon (aeronautical ground light)
BCSTBroadcast
BDRYBoundary
BECMGBecoming
BFRBefore
BKNBroken
BL...Blowing (followed by DU = dust, SA = sand or SN = snow)
BLDGBuilding
BLOBelow cloudsBLSNBlowing snow
BLWBelow...
BOMBBombing
BRMist
BRFShort (used to indicate the type of approach desired or required)
BRGBearing
BRKGBraking
BSCommercial broadcasting station
BTLBetween layers
BTNBetween
BUFRBinary universal form for the representation of meteorological data
. - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
CDegrees Celsius (Centigrade)
CACourse to an altitude
CAACivil aviation authority or civil aviation administration
CATCategory
CATClear air turbulence
CAVOK(to be pronounced “KAV-OH-KAY”) Visibility, cloud and present weather better than prescribed values or conditions
CB‡ Cumulonimbus (to be pronounced “CEE BEE”)
CCCirrocumulus
CCA(or CCB, CCC... etc., in sequence) Corrected meteorological message (message type designator)
CCOContinuous climb operations
CDCandela
CDNCo-ordination (message type designator)
CDOContinuous descent operations
CDRConditional route
CFChange frequency to...
CFCourse to a fix
CFMConfirm or I confirm
CGLCircling guidance light(s)
CHChannel
CH#This is a channel-continuity-check of transmission to permit comparison of your record of channel-sequence numbers of messages received on the channel
(to be used in AFS as a procedure signal)
CHEMChemical
CHGModification (message type designator)
CICirrus
CIDIN† Common ICAO data interchange network
CITNear or over large towns*
CIVCivil
CKCheck
CLCentre line
CLAClear type of ice formation
CLBRCalibration
CLDCloud
CLG Calling
CLIMB-OUT Climb-out area
CLRClear(s) or cleared to... or clearance
CLRDRunway(s) cleared (used in METAR/SPECI)
CLSDClose or closed or closing
CMCentimetre
CMBClimb to or climbing to
CMPLCompletion or completed or complete
CNLCancel or cancelled
CNLFlight plan cancellation (message type designator)
CNSCommunications, navigation and surveillance
CNSContinuous*
COMCommunications
CONCConcrete
CONDCondition
CONSContinuous
CONSTConstruction or constructed
CONTContinue or continued
COORCoordinate or coordination
COORDCoordinates
COPChange-over point
CORCorrect or corrected or correction
(used to indicate corrected meteorological message; message type designator)
COTAt the coast
COVCover or covered or covering
CPGeneral call to two or more specified stations*
CPDLCController-pilot data link communications
CPLCurrent flight plan (message type designator)
CRCCyclic redundancy check
CRMCollision risk model
CRPCompulsory reporting point
CRZCruise
CSCall sign (used to request a call sign)
CSCirrostratus
CTAControl area
CTAMClimb to and maintain
CTCContact
CTLControl
CTNCaution
CTRControl zone
CUCumulus
CUFCumuliform
CUSTCustoms
CVRCockpit voice recorder
CWContinuous wave
CWYClearway
D - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
DDownward (tendency in RVR during previous 10 minutes)
D-ATIS† Data link automatic terminal information service (to be pronounced “DEE-ATIS”)
D-VOLMETData link VOLMET
D...Danger area (followed by identification)
DADecision altitude
DCDDouble channel duplex
DCKGDocking
DCPDatum crossing point
DCPCDirect controller-pilot communications
DCSDouble channel simplex
DCTDirect (in relation to flight plan clearances and type of approach)
DEFrom (used to precede the call sign of the calling station)
(to be used in AFS as a procedure signal)
DECDecember
DEGDegrees
DENEBFog dispersal operations*
DEPDepart or departure
DEPDeparture (message type designator)
DEPODeposition
DERDeparture end of the runway
DESDescend to or descending to
DESTDestination
DETRESFA† Distress phase
DEVDeviation or deviating
DFDirection finding
DFDRDigital flight data recorder
DFTIDistance from touchdown indicator
DGPSDifferential global positioning system*
DHDecision height
DIFDiffuse
DISTDistance
DIVDivert or Diverting
DLADelay (message type designator)
DLADelay or delayed
DLICData link initiation capability
DLMData Link Manager*
DLYDaily
DME‡ Distance measuring equipment
DNGDanger or dangerous
DOFDate of flight
DOMDomestic
DPDew point temperature
DPTDepth
DRDead reckoning
DR...Low drifting (followed by DU = dust, SA = sand or SN = snow)
DRGDuring
DRSNLow drifting snow*
DSDuststorm
DSBDouble side-band
DTAMDescend to and maintain
DTGDate-time group
DTHRDisplaced runway threshold
DTRTDeteriorate or deteriorating
DTWDual tandem wheels
DUDust
DUCDense upper cloud
DUPEThis is a duplicate message (to be used in AFS as a procedure signal)
DURDuration
DVORDoppler VOR
DWDual wheels
DZDrizzle
E - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
EEast or eastern longitude
EATExpected approach time
EBEastbound
EDAElevation differential area
EDTOExtended diversion time operations
EEE#Error (to be used in AFS as a procedure signal)
EETEstimated elapsed time
EFCExpect further clearance
EFIS† Electronic flight instrument system overlay service (to be pronounced “EE-FIS”)
EGNOS† European geostationary navigation (to be pronounced “EGG-NOS”)
EHFExtremely high frequency (30 000 to 300 000 MHz)
ELBA† Emergency location beacon - aircraft
ELEVElevation
ELRExtra long range
ELTEmergency locator transmitter
EMEmission
EMBDEmbedded in a layer (to indicate cumulonimbus embedded in layers of other clouds)
EMERGEmergency
ENDStop-end (related to RVR)
ENEEast-north-east
ENGEngine
ENREn route
ENRC...Enroute chart (followed by name/title)
ENRTEn route*
EOBTEstimated off-block time
EQNEquatorial latitudes northern hemisphere
EQPTEquipment
EQSEquatorial latitudes southern hemisphere
ERHere... or herewith*
ESEEast-south-east
ESTEstimate or estimated or estimation (message type designator)
ETA‡ Estimated time of arrival or estimating arrival
ETD‡ Estimated time of departure or estimating departure
ETOEstimated time over significant point
EUR RODEX European regional OPMET data exchange
EVEvery
EXCExcept
EXERExercises or exercising or to exercise
EXPExpect or expected or expecting
EXTDExtend or extending
F - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
FFixed
FDegrees Fahrenheit*
FACourse from a fix to an altitude
FACFacilities
FAFFinal approach fix
FALFacilitation of international air transport
FANSFuture Air Navigation Systems*
FAPFinal approach point
FASFinal approach segment
FATOFinal approach and take-off area
FAXFacsimile transmission
FBLLight (used to qualify icing, turbulence, interference, or static reports)(used to indicate the intensity of weather phenomena, interference or static reports, e.g. FBL RA = light rain)
FCFunnel cloud
FCSTForecast
FCTFriction coefficient
FDPSFlight data processing system
FEBFebruary
FEWFew
FGFog
FICFlight information centre
FIR‡ Flight information region
FISFlight information service
FISAAutomated flight information service
FLFlight level
FLDField
FLGFlashing
FLRFlares
FLTFlight
FLTCKFlight check
FLUCFluctuating or fluctuation or fluctuated
FLWFollow(s) or following
FLYFly or flying
FMCourse from a fix to manual termination (used in navigation database coding)
FMFrom
FM...From (followed by time at which weather change is forecast to begin)
FMCFlight management computer
FMSFlight management system
FMUFlow management unit
FNAFinal approach
FOTUnits of English system*
FPAPFlight path alignment point
FPLFiledFlight plan(message type designator)
FPMFeet per minute
FPRFlight plan route
FRFuel remaining
FREQFrequency
FRIFriday
FRNGFiring
FRONT† Front (relating to weather)
FROST† Frost (used in aerodrome warnings)
FRQFrequent
FSFEFANS services front end*
FSLFull stop landing
FSSFlight service station
FSTFirst
FTFeet (dimensional unit)
FTEFlight technical error
FTPFictitious threshold point
FTTFlight technical tolerance
FUSmoke
FZFreezing
FZDZFreezing drizzle
FZFGFreezing fog
FZRAFreezing rain
G - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
GGolf*
GGreen
GWind Gusts*
G...Variations from the mean wind speed (gusts) (followed by figures in METAR/SPECI and TAF)
G/AGround-to-air
G/A/GGround-to-air and air-to-ground
GAGeneral aviation
GAGo ahead, resume sending (to be used in AFS as a procedure signal)
GAGAN† GPS and geostationary earth orbit augmented navigation
GAINAirspeed or headwind gain
GAMETArea forecast for low-level flights
GARPGBAS azimuth reference point
GBAS† Ground-based augmentation system (to be pronounced “GEE-BAS”)
GCA‡ Ground controlled approach system or ground controlled approach
GENGeneral
GEOGeographic or true
GESGround earth station
GLDGlider
GLONASS† Global navigation satellite system (to be pronounced “GLO-NAS”)
GLS‡ GBAS landing system
GMC...Ground movement chart (followed by name/title)
GMTGreenwich mean time*
GNDGround
GNDCKGround check
GNSS‡ Global nav. sat. system
GOVGovernment
GPGlide path
GP VHF‡ General purpose very high frequency*
GPAGlide path angle
GPIPGlide path intercept point
GPS‡ Global positioning system
GPUGround power unit
GPWS‡ Ground proximity warning system
GRHail
GRHail or soft hail*
GRADMinimum required Climb Gradient*
GRADUGradual or gradually*
GRAS† Ground-based regional augmentation system (to be pronounced “GRASS”)
GRASSGrass landing area
GRIBProcessed meteorological data in the form of grid point values expressed in binary form
(in meteorological code)
GRIDProcessed meteorological data in the form of grid point values*
(in aeronautical meteorological code)
GRNGreen*
GRVLGravel
GSGround speed
GSSmall hail and/or snow pellets
GUNDGeoid undulation
H - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
HHigh pressure area or the centre of high pressure
H...Significant wave height (followed by figures in METAR/SPECI)
H24Continuous day and night service
HAHolding/racetrack to an altitude
HAPIHelicopter approach path indicator
HBNHazard beacon
HCHHeliport crossing height
HDFHigh frequency direction-finding station
HDGHeading
HELHelicopter
HFHolding/racetrack to a fix
HF‡ High frequency (3 000 to 30 000 kHz)
HGTHeight or height above
HJSunrise to sunset
HLAHigh Level Airspace*
HLDGHolding
HLPHeliport
HLSHelicopter landing site
HMHolding/racetrack to a manual termination
HNSunset to sunrise
HNHHigh latitudes northern hemisphere
HOService available to meet operational requirements
HOLHoliday
HOSPHospital aircraft
HPAHectopascal
HRHours
HRPHeliport reference point
HSService available during hours of scheduled operations
HSHHigh latitudes southern hemisphere
HUDHead-up display
HUMHumanitarian
HURCNHurricane
HVDFHigh and very high frequency direction-finding stations (at the same location)
HVYHeavy
HVYHeavy (used to indicate the intensity of weather phenomena, e.g. HVY RA = heavy rain)
HXNo specific working hours
HYRHigher
HZHaze
HZHertz (cycle per second)
I - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
IAC...Instrument approach chart (followed by name/title)
IAFInitial approach fix
IAIPIntegrated Aeronautical Information Package*
IALInstrument approach and landing chart*
IAOIn and out of clouds
IAPInstrument approach procedure
IARIntersection of air routes
IASIndicated air speed
IBNIdentification beacon
ICAOInternational Civil Aviation Organization
ICEIcing
IDIdentifier or identify
IDENT† Identification
IFIntermediate approach fix
IFFIdentification friend/foe
IFR‡ Instrument flight rules
IGAInternational general aviation
ILS‡ Instrument landing system
IMInner marker
IMC‡ Instrument meteorological conditions
IMGImmigration
IMIInterrogation sign (question mark) (to be used in AFS as a procedure signal)
IMPRImprove or improving
IMTImmediate or immediately
INAInitial approach
INBDInbound
INCIn cloud
INCERFAUncertainty phase
INCORPIncorporated
INFO† Information
INOPInoperative
INPIf not possible
INPRIn progress
INSInches (dimensional unit)*
INSInertial navigation system
INSTLInstall or installed or installation
INSTRInstrument
INTIntersection
INTERIntermittent*
INTLInternational
INTRGInterrogator
INTRPInterrupt or interruption or interrupted
INTSFIntensify or intensifying
INTSTIntensity
IRIce on runway
IRSInertial reference system
ISAInternational standard atmosphere
ISBIndependent sideband
ISOLIsolated
J - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
JAGJet arresting gear*
JANJanuary
JMMake a series of dashes if I may transmit*
JMMake a series of dots to stop my transmission*
JRCCJoint Rescue Coordination Centre* Björgunarstjórnstöð sjófarenda og loftfara*
JTSTJet stream
JULJuly
JUNJune
K - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
KInvitation to transmit*
KAStart-of-message signal in Morse telegraphy*
KGKilograms
KHZKilohertz
KIASKnots indicated airspeed
KMKilometres
KMHKilometres per hour
KPAKilopascal
KTKnots
KWKilowatts
. - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
LLitre
LLeft (Runway identification) Locator (see LM, LO)
LLow pressure area or the centre of low pressure
LAMLogical acknowledgement (message type designator)
LANInland
LATLatitude
LBPounds (weight)*
LCALocal or locally or location or located
LCNLoad classification number*
LDALanding distance available
LDAHLanding distance available, LDA helicopter
LDGLanding
LDILanding direction indicator
LDINLead-In Light System*
LEFTLeft (direction of turn)*
LENLength
LFLow frequency (30 to 300 kHz)
LGTLight or lighting
LGTDLighted
LIHLight intensity high
LILLight intensity low
LIMLight intensity medium
LINELine (used in SIGMET)
LLZLocalizer*
LMLocator, middle
LMTLocal mean time
LNAV† Lateral navigation (to be pronounced “EL-NAV”)
LNGLong (used to indicate the type of approach desired or required)
LOLocator, outer-Connect me to a perforator receiver*
LOCLocalizer, Locally*, location* or located*
LONGLongitude
LORAN† LORAN (long range air navigation system)
LOSSAirspeed or headwind loss
LPVLocalizer performance with vertical guidance
LRThe last message received by me was... (to be used in AFS as a procedure signal)
LRGLong range
LSThe last message sent by me was... or Last message was... (to be used in AFS as a procedure signal)(or last message was...)
LSQLine squall*
LTALower control area
LTDLimited
LTPLanding threshold point
LTTLand-line teletypewriter*
LVLight and variable (relating to wind)
LVELeave or leaving
LVLLevel
LVPLow visibility procedures
LYRLayer or layered
. - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
M...Mach number (followed by figures)
M...Minimum value of runway visual range (followed by figures in METAR/SPECI)
MAAMinimum authorized altitude
MAGMagnetic
MAHFMissed approach holding fix
MAINTMaintenance
MALSMedium Intensity Approach Light System*
MALSFMALS with sequenced Flashing lights*
MALSRMALS with Runway alignment indicator*
MAPAeronautical maps and charts
MAPTMissed approach point
MAPtMissed approach point*
MARAt seaMarch
MARMarch
MASManual Al simplex*
MATFMissed approach turning fix
MATZMilitary aerodrome traffic zone
MAXMaximum
MAYMay
MBMillibars*
MBSTMicroburst
MC...Multiple copy for delivery to... (number) addressees*
MCAMinimum crossing altitude
MCTRMilitary control zone
MCWModulated continuous wave
MDAMinimum descent altitude
MDFMedium frequency direction-finding station
MDHMinimum descent height
MEAMinimum en-route altitude
MEDEVACMedical evacuation flight
MEHTMinimum eye height over threshold
MET† Meteorological or meteorology
MET REPORT Local routine meteorological report (in abbreviated plain language)
METAR† Aerodrome routine meteorological weatherreport (in meteorological code)
MFMedium frequency (300 to 3000 kHz)
MHAMinimum holding altitude
MHDFMedium and high frequency direction-finding stations (at the same location)
MHVDFMedium, high and very high frequency direction-finding station (at the same location)
MHZMegahertz
MIDMid-point (related to RVR)
MIFGShallow fog
MILMilitary
MINMinutes
MISMissing... (transmission identification) (to be used in AFS as a procedure signal)
MKRMarker radio beacon
MLATMultilateration*
MLS‡ Microwave landing system
MMMiddle marker
MMMMConnect to... stations (used in multiple transmission, followed by call signs of stations)*
MNHMiddle latitudes northern hemisphere
MNMMinimum
MNPSMinimum navigation performance specifications
MNTMonitor or monitoring or monitored
MNTNMaintain
MOAMilitary operating area
MOCMinimum obstacle clearance (required)
MOCAMinimum obstacle clearance altitude
MODModerate (used to qualify icing, turbulence, interference, or static reports)*
MODModerate (used to indicate the intensity of weather phenomena, interference or static reports, e.g. MODRA = moderate rain)
MONAbove mountains
MONMonday
MOPSMinimum operational performance standards
MOTNEMeteorological Operational Telecommunications Network Europe*
MOVMove or moving or movement
MPHStatute miles per hour*
MPSMetres per second
MRAMinimum reception altitude
MRGMedium range
MRPATS/MET reporting point
MSMinus
MSAMinimum safe altitude*
MSAMinimum sector altitude
MSAS† Multifunctional transport satellite (MTSAT) satellite-based augmentation system (to be pronounced “EM-SAS”)
MSAWMinimum safe altitude warning
MSGMessage
MSHMiddle latitudes southern hemisphere
MSLMean sea level
MSRMessage... (transmission identification) has been misrouted
(to be used in AFS as a procedure signal)
MSSRMonopulse secondary surveillance radar
MTMountain
MTOMMaximum take-off mass
MTUMetric units
MTWMountain waves
MVDFMedium and very high frequency direction-finding stations (at the same location)
MWOMeteorological watch office
MXMixed type of ice formation (white and clear)
N - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
NNo distinct tendency (in RVR during previous 10 minutes)
NNorth or northern latitude
NADPNoise abatement departure procedure
NASC† National AIS system centre
NATNorth Atlantic
NAVNavigation
NAVAIDNavigation aid
NBNorthbound
NBFRNot before
NCNo change
NCDNo cloud detected (used in automated METAR/SPECI)
NDI am unable to deliver message... (filing number) addressed to aircraft... (identification):
please notify message originator*
NDB‡ Non-directional radio beacon
NDVNo directional variations available (used in automated METAR/SPECI)
NENorth-east
NEBNorth-eastbound
NEGNo or negative or permission not granted or that is not correct
NEHI am connecting you to a station which will accept traffic for the station you request*
NGTNight
NIL† None or I have nothing to send to you
NMNautical miles
NMLNormal
NMOCNetwork Manager Operations Centre*
NNNo name, unnamed
NNENorth-north-east
NNWNorth-north-west
NONo (negative) (to be used in AFS as a procedure signal)
NOFInternational NOTAM office
NONSTDNon-standard
NOSIG† No significant change (used in trend-type landing forecasts)
NOTAMA notice containing information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to personnel concerned with flight operationsNotice distributed by means of telecommunication containing information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to personnel concerned with flight operations
NOTAMCCancelling NOTAM
NOTAMNNew NOTAM
NOTAMRReplacing NOTAM
NOVNovember
NOZ‡ Normal operating zone
NPANon-precision approach
NRNumber
NRHNo reply heard
NSNimbostratus
NSCNil significant cloud
NSENavigation system error
NSWNil significant weather
NTLNational
NTZ‡ No transgression zone
NWNorth-west
NWBNorth-westbound
NXTNext
O - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
O/ROn request
OACOceanic area control centre
OASObstacle assessment surface
OBSObserve or observed or observation
OBSCObscure or obscured or obscuring
OBSTObstacle
OCAObstacle clearance altitude
OCAOceanic control area
OCCOcculting (light)
OCCThe line is engaged*
OCHObstacle clearance height
OCLObstacle clearance limit*
OCNLOccasional or occasionally
OCSObstacle clearance surface
OCTOctober
OFZObstacle free zone
OGNOriginate (to be used in AFS as a procedure signal)
OHDOverhead
OISObstacle identification surface
OKWe agree or it is correct (to be used in AFS as a procedure signal)
OLDI† On-line data interchange
OMOuter marker
OPAOpaque, white type of ice formation
OPCControl indicated is operational control
OPMET† Operational meteorological (information)
OPNOpen or opening or opened
OPROperator or operate or operative or operating or operational
OPS† Operations
ORDOrder
OSVOcean station vessel
OTPOn top
OTSOrganized track system
OUBDOutbound
OVCOvercast
P - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
P...Maximum value of wind speed or runway visual range
(followed by figures in METAR/SPECI and TAF)
P...Prohibited area
(followed by identification)
PAPrecision approach
PALSPrecision approach lighting system
(specify category)
PANSProcedures for air navigation services
PAPI† Precision approach path indicator
PAR‡ Precision approach radar
PARLParallel
PATC...Precision approach terrain chart
(followed by name/title)
PAXPassenger(s)
PBCPerformance-based communication
PBNPerformance-based navigation
PBSPerformance-based surveillance
PCDProceed or proceeding
PCLPilot-controlled lighting
PCNPavement classification number
PCTPer cent
PDC‡ Pre-departure clearance
PDGProcedure design gradient
PEIce pellets*
PERPerformance
PERMPermanent
PIBPre-flight information bulletin
PJEParachute jumping exercise
PLIce pellets
PLAPractice low approach
PLNFlight plan
PLVLPresent level
PNPrior notice required
PNRPoint to no return
PODust/sand whirls (Dust devils)
POBPersons on board
POSSPossible
PPIPlan position indicator
PPRPrior permission required
PPSNPresent position
PRDProhibited – Restricted - Danger*
PRFGAerodrome partially covered by fog
PRIPrimary
PRKGParking
PROB† Probability
PROCProcedure
PROPPropeller
PROVProvisional
PRPPoint-in-space reference point
PSPlus
PSGPassing
PSGRPassenger*
PSNPosition
PSPPierced steel plank
PSR‡ Primary surveillance radar
PSYSPressure system(s)
PTNProcedure turn
PTSPolar track structure
PUNPrepare a new perforated tape for message...*
PWRPower
Q - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
QBICompulsory IFR flight*
QDLDo you intend to ask me for a series of bearings? or I intend to ask you for a series of bearings (to be used in radiotelegraphy as a Q Code)
QDM‡ Magnetic heading (zero wind)
QDRMagnetic bearing
QFE‡ Atmospheric pressure at aerodrome elevation (or at runway threshold)
QFUMagnetic orientation of runway
QGEWhat is my distance to your station? or Your distance to my station is (distance figures and units) (to be used in radiotelegraphy as a Q Code)
QJHShall I run my test tape/a test sentence? or Run your test tape/a test sentence
(to be used in AFS as a Q Code)
QNH‡ Altimeter sub-scale setting to obtain elevation when on the ground
QSPWill you relay to... free of charge? or I will relay to... free of charge (to be used in AFS as a Q Code)
QTAShall I cancel telegram number...? or Cancel telegram number... (to be used in AFS as a Q Code)
QTETrue bearing
QTFWill you give me the position of my station according to the bearings taken by the D/F stations which you control? or The position of your station according to the bearings taken by the D/F stations that I control was... latitude... longitude (or other indication of position), class... at... hours (to be used in radiotelegraphy as a Q Code)
QUADQuadrant
QUJWill you indicate the TRUE track to reach you? or The TRUE track to reach me is... degrees at... hours (to be used in radiotelegraphy as a Q Code)
. - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
RRate of turn
RReceived (acknowledgement of receipt)
RRed
RReceived (acknowledgement of receipt) (to be used in AFS as a procedure signal)
RRomeo*
RRight (preceded by runway designation number to identify a parallel runway)*
R...Radial from VOR (followed by three figures)
R...Restricted area (followed by identification)
R...Runway (followed by figures in METAR/SPECI)
RARain
RAResolution advisory
RACRules of the air and air traffic services
RAGRagged
RAGRunway arresting gear
RAIRunway alignment indicator
RAIMReceiver autonomous integrity monitoring
RAPIDRapid or rapidly*
RASC† Regional AIS system centre
RASHRain showers
RASNRain and snow or showers of rain and snow*
RASSRemote altimeter setting source
RBRead back*
RBRescue boat
RCAReach cruising altitude
RCCRescue co-ordination centre
RCFRadio communication failure (message type designator)
RCHReach or reaching
RCLRunway centre line
RCLRequest Clearance (including OCM requests)*
RCLLRunway centre line light(s)
RCLRRecleared
RCP‡ Required communication performance
RDHReference datum height
RDHReference datum height (for ILS)*
RDLRadial
RDORadio
RDOACTRadioactive
RERecent (used to qualify weather phenomena such as rain, e.g. recent rain = RERA)
RECReceive or receiver
REDLRunway edge light(s)
REFReference to... or refer to...
REGRegistration
RENLRunway end light(s)
REPReport or reporting or reporting point
REQRequest or requested
RERTERe-route
RESARunway end safety area
RETRapid Exit Taxiway*
RFConstant radius arc to a fix
RFFSRescue and fire fighting services
RGRange (lights)
RHCRight-hand circuit
RIFReclearance in flight
RIME† Rime (used in aerodrome warnings)
RITERight (direction of turn)
RLReport leaving
RLARelay to
RLCERequest level change en route
RLLSRunway lead-in lighting system
RLNARequested level not available
RMKRemark
RNAV† Area navigation (to be pronounced “AR-NAV”)
RNGRadio range
RNP‡ Required navigation performance
ROBEX† Regional OPMET bulletin exchange (scheme)
ROCRate of climb
RODRate of descent
ROFORRoute forecast (in aeronautical meteorological code)
RONReceiving only
ROTRunway Occupancy Time*
RPDSReference path data selector
RPI‡ Radar position indicator
RPLRepetitive flight plan
RPLCReplace or replaced
RPSRadar position symbol
RPTRepeat or I repeat
RQRequest
RQMNTSRequirements
RQPRequest flight plan (message type indicator)
RQSRequest supplementary flight plan (message type indicator)
RRReport reaching
RRA(or RRB, RRC... etc., in sequence) Delayed meteorological message (message type designator)
RSCRescue sub-centre
RSCDRunway surface condition
RSPResponder beacon
RSP‡ Required surveillance performance
RSREn-route surveillance radar
RSSRoot sum square
RTDDelayed (used to indicate delayed meteorological message; message type designator)
RTERoute
RTFRadiotelephone
RTGRadiotelegraph
RTHLRunway threshold light(s)
RTNReturn or returned or returning
RTODAHRejected take-off distance available, helicopter
RTSReturn to service
RTTRadioteletypewriter
RTZLRunway touchdown zone light(s)
RUTStandard regional route transmitting frequencies
RVRescue vessel
RVARadar vectoring area
RVR‡ Runway visual range
RVSM‡ Reduced vertical separation minimum [300 m (1 000 ft) between FL 290 and FL 410]
RWYRunway
S - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
SSouth or southern latitude
S...State of the sea (followed by figures in METAR/SPECI)
SASand
SADust-storm, sand-storm, rising dust or rising sand*
SALSSimple approach lighting system
SANSanitary
SAPAs soon as possible*
SARSearch and rescue
SARPSStandards and Recommended Practices (ICAO)
SATSaturday
SATCOM† Satellite communication (used only when referring generally to both voice and data satellite communication or only data satellite communication)
SATVOICE† Satellite voice communication
SBSouth bound
SBAS† Satellite-based augmentation system (to be pronounced “ESS-BAS”)
SCStratocumulus
SCTScattered
SDBYStand by
SDFStep down fix
SESouth-east
SEASea (used in connection with sea-surface temperature and state of the sea)
SEBSouth-eastbound
SECSeconds
SECNSection
SECTSector
SELCAL† Selective calling system
SEPSeptember
SERService or servicing or served
SEVSevere (used e.g. to qualify icing and turbulence reports)
SFCSurface
SGSnow grains
SGLSignal
SH...Showers (followed by RA = rain, SN = snow, PL = ice pellets, GR = hail, GS = small hail and/or snow pellets or combinations thereof, e.g. SHRASN = showers of rain and snow)
SHFSuper high frequency (3 000 to 30 000 MHz)
SIInternational system of units
SID† Standard instrument departure
SIFSelective identification feature
SIGSignificant
SIGMET† Information concerning en-route weather and other phenomena in the atmosphere that may affect the safety of aircraft operationsphenomena which may affect the safety of aircraft operations
SIGWXSignificant weather*
SIMULSimultaneous or simultaneously
SIWLSingle isolated wheel load
SKCSky clear*
SKEDSchedule or scheduled
SLOPStrategic Lateral Offset Procedure*
SLWSlow
SMCSurface movement control
SMRSurface movement radar
SNSnow
SNOCLOAerodrome closed due to snow (used in METAR/SPECI)
SNOWTAM† Special series NOTAM notifying the presence or removal of hazardous conditions due to snow, ice, slush or standing water associated with snow, slush and ice on the movement area, by means of a specific format
SNSHSnow showers*
SOCStart of climb
SPECI† Aerodrome special meteorological report (in meteorological code)
SPECIALSpecial meteorological reportLocal special meteorological report (in abbreviated plain language)*
SPISpecial position indicator
SPLSupplementary flight plan (message type designator)
SPOCSAR point of contact
SPOT† Spot wind
SQSquall
SQL Squall line
SRSunrise
SRASurveillance radar approach
SRESurveillance radar element of precision approach radar system
SRGShort range
SRRSearch and rescue region
SRYSecondary
SSSandstorm
SSSunset
SSBSingle sideband
SSESouth-south-east
SSR‡ Secondary surveillance radar
SSTSupersonic transport
SSWSouth-south-west
STStratus
STAStraight-in approach
STAR† Standard (instrument) arrival
STDStandard
STFStratiform
STNStation
STNRStationary
STOLShort take-off and landing
STSStatus
STWLStopway light(s)
SUBJSubject to
SUNSunday
SUPSupplement (AIP supplement)
SUPPSRegional supplementary procedures
SVCService message(message type only)
SVCBLServiceable
SWSouth-west
SWBSouth-westbound
SWCSignificant Weather Chart*
SWXSpace weather
SWXCSpace weather centre
SWYStopway
T - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
TTemperature
. - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
T-VASIS† T visual approach slope indicator system (to be pronounced “TEE-VASIS”)
TATraffic advisory
TATransition altitude
TA/HTurn at an altitude/height
TAATerminal Arrival Altitude
TACAN† UHF tactical air navigation aid
TAF† Aerodrome forecast (in meteorological code)
TAIL† Tail wind
TARTerminal area surveillance radar
TASTrue airspeed
TAXTaxiing or taxi
TCTropical cyclone
TCACTropical cyclone advisory centre
TCAS RA† Traffic alert and collision avoidance system resolution advisory
(to be pronounced “TEE-CAS-AR-AY”)
TCHThreshold Crossing Height
TCUTowering cumulus
TDOTornado
TDZTouchdown zone
TECRTechnical reason
TELTelephone
TEMPO† Temporary or temporarily
TENDTrend or tending to*
TFTrack to fix
TFCTraffic
TGLTouch-and-go landing
TGSTaxiing guidance system
THRThreshold
THRUThrough
THUThursday
TIBA† Traffic information broadcast by aircraft
TIL† Until
TIP...Until past (followed by place)
TIZTraffic information zone*
TKOFTake off
TL...Till (followed by time by which weather change is forecast to end)
TLOFTouchdown and lift-off area
TMA‡ Terminal control area
TN...Minimum temperature (followed by figures in TAF)
TNATurn altitude
TNCTerminal Navigation Charge*
TNHTurn height
TO...To... (followed by place)
TOCTop of climb
TODATake-off distance available
TODAH Take-off distance available, helicopter
TOP† Cloud top
TORATake-off run available
TOXToxic
TPTurning point
TRTrack
TRATemporary reserved airspace
TRANSTransmits or transmitter
TREND† Trend forecast
TRGTraining
TRLTransition level
TROPTropopause
TSThunderstorm (in aerodrome reports and forecasts, TS used alone means thunder heard but no precipitation at the aerodrome)
TS...Thunderstorm (followed by RA = rain, SN = snow, PL = ice pellets, GR = hail, GS = small hail and/orsnow pellets or combinations thereof, e.g. TSRASN = thunderstorm with rain and snow)
TSGRThunderstorm with hail*
TSSAThunderstorm with duststorm or sandstorm*
TSUNAMI† Tsunami (used in aerodrome warnings)
TTTeletype-writer
TUETuesday
TURBTurbulence
TVORTerminal VOR
TWILTwilight*
TWRAerodrome control tower or aerodrome control
TWYTaxiway
TWYLTaxiway-link*
TX...Maximum temperature (followed by figures in TAF)
TXLTaxilane
TXTText (when the abbreviation is used to request a repetition, the question mark (IMI) precedes the abbreviation, e.g. IMI TXT) (to be used in AFS as a procedure signal)
TYPType of aircraft
TYPHTyphoon
U - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
UUpward (tendency in RVR during previous 10 minutes)
U/SUnserviceable
UAUnmanned aircraft
UABUntil advised by...
UACUpper area control centre
UARUpper air route
UASUnmanned aircraft system
UDFUltra high frequency direction-finding station
UFNUntil further notice
UHDTUnable higher due traffic
UHF‡ Ultra high frequency (300 to 3000 MHz)
UICUpper information centre
UIR‡ Upper flight information region
ULMUltra light motorized aircraft
ULRUltra long range
UNAUnable
UNAPUnable to approve
UNLUnlimited
UNRELUnreliable
UPUnidentified precipitation (used in automated METAR/SPECI)
UTAUpper control area
UTC‡ Coordinated universal time
. - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
VAHeading to an altitude
VAVolcanic ash
VAACVolcanic ash advisory centre
VAC...Visual approach chart (followed by name/title)
VALIn valleys
VALVisual approach and landing chart*
VANRunway control van
VARMagnetic variation
VARVisual-aural radio range
VASISVisual approach slope indicator system
VC...Vicinity of the aerodrome (followed by FG = fog, FC = funnel cloud, SH = shower, PO = dust/sand whirls, BLDU = blowing dust, BLSA = blowing sand, BLSN = blowing snow, DS = duststorm, SS = sandstorm, TS = thunderstorm or VA = volcanic ash, e.g. VCFG = vicinity fog)
VCYVicinity
VDFVery high frequency direction-finding station
VERVertical
VFR‡ Visual flight rules
VHF‡ Very high frequency (30 to 300 MHz)
VIHeading to an intercept
VIABy way of...*
VIOHeavy (used to qualify interference or static reports)*
VIP‡ Very important person*
VISVisibility
VLFVery low frequency (3 to 30 kHz)
VLRVery long range
VMHeading to a manual termination
VMC‡ Visual meteorological conditions
VNAV† Vertical navigation (to be pronounced “VEE-NAV”)
VOL... Volume (followed by I, II...)
VOLMET† Meteorological information for aircraft in flight
VOR‡ VHF omnidirectional radio range
VORTAC† VOR and TACAN combination
VOTVOR airborne equipment test facility
VPAVertical path angle
VPTVisual manoeuvre with prescribed track
VRBVariable
VSABy visual reference to the ground
VSPVertical speed
VTFVector to final
VTOLVertical take-off and landing
VV...Vertical visibility (followed by figures in METAR/SPECI and TAF)
W - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
VVVRetransmit this message to all addressees mentioned in the line-following-the-heading, as though it had been filed locally at your centre (group used in a diversion indicator)*
VVV..VVVMarking or test transmission (sent in a series)*
WWest or western longitude
WWhite
W...Sea-surface temperature (followed by figures in METAR/SPECI)
WAWord after... *
WAAS† Wide area augmentation system
WAC...World Aeronautical Chart - ICAO 1:1 000 000 (followed by name/title)
WAFCWorld area forecast centre
WAFSWorld area forecast system*
WBWestbound
WBARWing bar lights
WDWords or groups*
WDIWind direction indicator
WDSPRWidespread
WEDWednesday
WEFWith effect from or effective from
WGS-84World Geodetic System — 1984
WHIWhite*
WIWithin
WIDWidth or wide
WIEWith immediate effect or effective immediately
WILCO† Will comply
WINDWind
WIPWork in progress
WKNWeaken or weakening
WNWWest-north-west
WOWithout
WPTWay-point
WRNGWarning
WSWind shear
WSPDWind speed
WSWWest-south-west
WTWeight
WTSPTWaterspout
WWWWorldwide web
WXWeather
WXRWeather radar
X - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
XCross
XBARCrossbar (of approach lighting system)
XNGCrossing
XSAtmospherics
XXHeavy (used to qualify weather phenomena such as rain, e.g. heavy rain = XXRA)*
Y - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
YYellow
YCZYellow caution zone (runway lighting)
YDYards*
YESYes (affirmative) (to be used in AFS as a procedure signal)
YRYour
Z - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
ZCoordinated Universal Time (in meteorological messages)