Notam Decode 13pg
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BACK TO THE NOTAM PAGE Birth of a NOTAM NOTAM start life as messages on the Aeronautical Fixed System (AFS). They are received centrally at the UK NOTAM office at London Heathrow from originators within the UK and from foreign NOTAM offices. AIS staff check and edit the NOTAM if necessary and they are then placed in the transmit queue for transmission to all UK NOTAM recipients. These include ATC offices, some airlines, briefing services etc. There is no central worldwide NOTAM database, databases are built up individually by users from the incoming message stream. ICAO NOTAM format The format of NOTAM is defined in Annex 15 to the International Convention on Civil Aviation. An explanation of the format can be found here . Here is a typical NOTAM and its decode. A1484/02 NOTAMN Q) EGTT/QMRXX/IV/NBO/A/000/999/5129N00028W005 A) EGLL B) 0208231540 C) 0210310500 EST E) RWY 09R/27L DUE WIP NO CENTRELINE, TDZ OR SALS LIGHTING AVBL Notam Decoder A1484/02 one letter to indicate the Series, a 4digit NOTAM number followed by a stroke and two digits to indicate the year. NOTAMN Suffix N Indicates this is a new NOTAM. Other options are R for NOTAM replacing another or C for one cancelling another. Q) EGTT/QMRXX/IV/NBO/A/000/999/5129N00028W005 This is the "Q" or qualifier line, it always starts Q) and contains the following fields, each separated by a stroke. FIR (here EGTT, London FIR) NOTAM Code, a 5 letter code starting with Q, defined in Annexe 15. Here QMR indicates that it concerns a Runway. XX indicates that remaining detail is in Plain Language. In this particular case the text shows that certain runway lighting is unavailable. Strictly speaking under ICAO rules this should have appeared as separate NOTAM for each type of lighting. QLCAS is the code for centreline lighting u/s QLZAS is the code for Touch Down Zone lighting u/s and QLAAS is the code for Approach Lighting u/s (note in
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BACKTOTHENOTAMPAGE
BirthofaNOTAM
NOTAMstartlifeasmessagesontheAeronauticalFixedSystem(AFS).Theyare received centrally at theUKNOTAMoffice at LondonHeathrow fromoriginatorswithintheUKandfromforeignNOTAMoffices.AISstaffcheckandedit theNOTAMifnecessaryandtheyarethenplacedinthetransmitqueue for transmission to all UK NOTAM recipients. These include ATCoffices,someairlines,briefingservicesetc.
There is no central worldwide NOTAM database, databases are built upindividuallybyusersfromtheincomingmessagestream.
ICAONOTAMformat
TheformatofNOTAMisdefinedinAnnex15totheInternationalConventiononCivilAviation.Anexplanationoftheformatcanbefoundhere.HereisatypicalNOTAManditsdecode.
A1484/02NOTAMNQ)EGTT/QMRXX/IV/NBO/A/000/999/5129N00028W005A)EGLLB)0208231540C)0210310500ESTE)RWY09R/27LDUEWIPNOCENTRELINE,TDZORSALSLIGHTINGAVBL
NotamDecoder
A1484/02 one letter to indicate the Series, a 4digit NOTAM numberfollowedbyastrokeandtwodigitstoindicatetheyear.
NOTAMNSuffixNIndicatesthisisanewNOTAM.OtheroptionsareRforNOTAMreplacinganotherorCforonecancellinganother.
Q)EGTT/QMRXX/IV/NBO/A/000/999/5129N00028W005
Thisisthe"Q"orqualifierline,italwaysstartsQ)andcontainsthefollowingfields,eachseparatedbyastroke.
FIR(hereEGTT,LondonFIR)
NOTAMCode,a5 lettercodestartingwithQ, defined inAnnexe 15.HereQMRindicatesthatitconcernsaRunway.XXindicatesthatremainingdetailis in Plain Language. In this particular case the text shows that certainrunway lighting is unavailable. Strictly speaking under ICAO rules thisshouldhaveappearedasseparateNOTAMforeachtypeoflighting.QLCASis thecode forcentreline lightingu/sQLZAS is thecode forTouchDownZonelightingu/sandQLAASisthecodeforApproachLightingu/s(notein
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allcasesASindicatesunserviceable).TheuseofQMRXXhereisasensiblecompromisethatreducesthenumberofNOTAMfromthreetoone.Afulllistof codes is included in ICAO document 8126 (Aeronautical InformationServicesManual).
IVIndicatesthatthisissignificantforIFRandVFRtraffic
NBOindicatesforimmediateattentionofaircraftoperators,forinclusioninPIB'sandOperationallysignificantforIFRflights
A Indicates scope, here Aerodrome, others are E (enroute) or W (navwarning)
000/999 lowerandupper limitsexpressedasa flight level. In thiscase ithasbeenleftasthedefaultasitisnotapplicable.
5129N00028W005 Indicates the geographical centre and radius ofinfluence,alwaysthisnumberofdigits.Inthiscasetheradiusis5n.m.
A)EGLL ICAOindicatoroftheaerodromeorFIR(LondonHeathrow)canincludemorethanoneFIR
B)0208231540Date/timegroup(UTC)whenthisNOTAMbecomeseffective
C)0210310500ESTDate/timegroup(UTC)whentheNOTAMceasestobeeffective.Note"EST"means"estimated"(NOTEasternStandardTime!).AllNOTAMwithESTremaininforceuntilcancelledorreplaced.
E)RWY09R/27LDUEWIPNOCENTRELINE,TDZORSALSLIGHTINGAVBLtextofthenotamusingICAOabbreviations.
Decode of this is "Runway 09/27 due to work in progress no centreline,touchdownzoneorsimpleapproachlightingsystemavailable"
Here'sthewholethingagain
A1484/02NOTAMNQ)EGTT/QMRXX/IV/NBO/A/000/999/5129N00028W005A)EGLLB)0208231540C)0210310500ESTE)RWY09R/27LDUEWIPNOCENTRELINE,TDZORSALSLIGHTINGAVBL
andhere'sthesamethingasitappearsinthePIBproducedbyANAIS
AGA:FROM02/08/2315:40TO02/10/3105:00ESTA1484/02E)RWY09R/27LDUEWIPNOCENTRELINE,TDZORSALSLIGHTINGAVBL
You can see that theQ line is omitted entirely, A) has been stripped outbecauseitappearsastheheadertothesectionandB)andC)havebeen
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reformattedandplaced in the first line.AGAhasbeenderived fromtheQCode"QMR"(seeAnnex15)
INTERNATIONALNOTAM(Q)CODES
ThisappendixistobeusedtointerpretthecontentsofcodedinternationalNOTAM's.
a.ANOTAMcodegroupcontainsfiveletters.Thefirstletterisalwaystheletter"Q''toindicateacodeabbreviationforuseinthecompositionofNOTAM's.
b.Thesecondandthirdlettersidentifythesubjectbeingreported.(SeeSecondandThirdLetterDecodeTables).
c.Thefourthandfifthlettersidentifythestatusofoperationofthesubjectbeingreported.(SeeFourthandFifthLetterDecodeTables).
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSAGALightingFacilities(L)
Code Signification UniformAbbreviatedPhraseology
LA Approachlightingsystem(specifyrunwayandtype)
apchlgt
LB Aerodromebeacon abnLC Runwaycenterlinelights(specifyrunway) rwycentrelinelgtLD Landingdirectionindicatorlights ldilgtLE Runwayedgelights(specifyrunway) rwyedgelgtLF Sequencedflashinglights(specifyrunway) sequencedflglgtLH Highintensityrunwaylights(specifyrunway) highintstrwylgtLI Runwayendidentifierlights(specifyrunway) rwyendidlgtLJ Runwayalignmentindicatorlights(specify
runway)rwyalignmentindicatorlgt
LK CategoryIIcomponentsofapproachlightingsystem(specifyrunway)
categoryIIcomponentsapchlgt
LL Lowintensityrunwaylights(specifyrunway) lowintstrwylgtLM Mediumintensityrunwaylights(specifyrunway) mediumintstrwylgtLP Precisionapproachpathindicator(PAPI)
(specifyrunway)papi
LR Alllandingarealightingfacilities ldgarealgtfacLS Stopwaylights(specifyrunway) swylgtLT Thresholdlights(specifyrunway) thrlgtLV Visualapproachslopeindicatorsystem(specify
typeandrunway)vasis
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LW Heliportlighting heliportlgtLX Taxiwaycentrelinelights(specifytaxiway) twycentrelinelgtLY Taxiwayedgelights(specifytaxiway) twyedgelgtLZ Runwaytouchdownzonelights(specifyrunway) rwytdzlgt
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSAGAMovementandLandingArea(M)
Code Signification UniformAbbreviatedPhraseology
MA Movementarea movareaMB Bearingstrength(specifypartoflandingarea
ormovementarea)bearingstrength
MC Clearway(specifyrunway) cwyMD Declareddistances(specifyrunway) declareddistMG Taxiingguidancesystem taxguidancesystemMH Runwayarrestinggear(specifyrunway) rwyarstgearMK Parkingarea prkgareaMM Daylightmarkings(specifythreshold,centre
line,etc.)daymarkings
MN Apron apronMP Aircraftstands(specify) acftstandMR Runway(specifyrunway) rwyMS Stopway(specifyrunway) swyMT Threshold(specifyrunway) thrMU Runwayturningbay(specifyrunway) rwyturningbayMW Strip(specifyrunway) stripMX Taxiway(s)(specify) twy
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSAGAFacilitiesandServices(F)
Code Signification UniformAbbreviatedPhraseology
FA Aerodrome adFB Brakingactionmeasurementequipment(specify
type)bameasurementeqpt
FC Ceilingmeasurementequipment ceilingmeasurementeqpt
FD Dockingsystem(specifyAGNIS,BOLDS,etc.) dckgsystem
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FF Firefightingandrescue fireandrescueFG Groundmovementcontrol gndmovctlFH Helicopteralightingarea/platform helalightingareaFL Landingdirectionindicator ldiFM Meteorologicalservice(specifytype) metFO Fogdispersalsystem fogdispersalFP Heliport heliportFS Snowremovalequipment snowremovaleqptFT Transmissometer(specifyrunwayand,where
applicable,designator(s)oftransmissometer(s))transmissometer
FU Fuelavailability fuelavblFW Winddirectionindicator wdiFZ Customs cust
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSCOMCommunicationsandRadarFacilities(C)
Code Signification UniformAbbreviatedPhraseology
CA Air/ground(specifyserviceandfrequency) a/gfacCE Enroutesurveillanceradar rsrCG Groundcontrolledapproachsystem(GCA) gcaCL Selectivecallingsystem(SELCAL) selcalCM Surfacemovementradar smrCP Precisionapproachradar(PAR)(specifyrunway) parCR Surveillanceradarelementofprecisionapproach
radarsystem(specifywavelength)sre
CS Secondarysurveillanceradar(SSR) ssrCT Terminalareasurveillanceradar(TAR) tar
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSCOMInstrumentandMicrowaveLandingSystem(I)
Code Signification UniformAbbreviatedPhraseology
ID DMEassociatedwithILS ilsdmeIG Glidepath(ILS)(specifyrunway) ilsgpII Innermarker(ILS)(specifyrunway) ilsimIL Localizer(ILS)(specifyrunway) ilslizIM Middlemarker(ILS)(specifyrunway) ilsmm
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IO Outermarker(ILS)(specifyrunway) ilsomIS ILSCategoryI(specifyrunway) ilsIIT ILSCategoryII(specifyrunway) ilsIIIU ILSCategoryIII(specifyrunway) ilsIIIIW Microwavelandingsystem(MLS)(specify
runway)mls
IX Locator,outer(ILS)(specifyrunway) ilsloIY Locator,middle(ILS)(specifyrunway) ilslm
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSCOMTerminalandEnRouteNavigationFacilities(N)
Code Signification UniformAbbreviatedPhraseology
NA Allradionavigationfacilities(except...) allrdonavfacNB Nondirectionalradiobeacon ndbNC DECCA deccaND Distancemeasuringequipment(DME) dmeNF Fanmarker fanmkrNL Locator(specifyidentification) lNM VOR/DME vor/dmeNN TACAN tacanNO OMEGA omegaNT VORTAC vortacNV VOR vorNX Directionfindingstation(specifytypeand
frequency)df
THENOTAMCODE
DECODESECONDANDTHIRDLETTERSRACAirspaceOrganization(A)
Code Signification UniformAbbreviatedPhraseology
AA Minimumaltitude(specifyenroute/crossing/safe)
mnmalt
AC ClassB,C,D,orESurfaceArea ctrAD Airdefenseidentificationzone(ADIZ) adizAE Controlarea(CTA) ctaAF Flightinformationregion(FIR) firAH Uppercontrolarea(UTA) utaAL Minimumusableflightlevel mnmusablefl
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AN Areanavigationroute rnavrouteAO Oceaniccontrolarea(OCA) ocaAP Reportingpoint(specifynameorCoded
designator)rep
AR ATSroute(specify) atsrouteAT ClassBAirspace tmaAU Upperflightinformationregion(UIR) uirAV Upperadvisoryarea(UDA) udaAX Intersection(INT) intAZ Aerodrometrafficzone(ATZ) atz
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSRACAirTrafficandVOLMETServices(S)
Code Signification UniformAbbreviatedPhraseology
SA Automaticterminalinformationservice(ATIS)
atis
SB ATSreportingoffice aroSC Areacontrolcentre(ACC) accSE Flightinformationservice(FIS) fisSF Aerodromeflightinformationservice
(AFIS)afis
SL Flowcontrolcentre flowctlcentreSO Oceanicareacontrolcentre(OAC) oacSP Approachcontrolservice(APP) appSS Flightservicestation(FSS) fssST Aerodromecontroltower(TWR) twrSU Upperareacontrolcentre(UAC) uacSV VOLMETbroadcast volmetSY Upperadvisoryservice(specify) advisoryser
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSRACAirTrafficProcedures(P)
Code Signification UniformAbbreviatedPhraseology
PA Standardinstrumentarrival(STAR)(specifyroutedesignator)
star
PB StandardVFRarrival stdvfrarrPC Contingencyprocedures contingencyproc
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PD Standardinstrumentdeparture(SID)(specifyroutedesignator)
sid
PE StandardVFRdeparture stdvfrdepPF Flowcontrolprocedure flowctlprocPH Holdingprocedure hldgprocPI Instrumentapproachprocedure(specifytypeand
runway)instapchproc
PL Obstacleclearancelimit(specifyprocedure) oclPK VFRapproachprocedure vfrapchprocPM Aerodromeoperatingminima(specifyprocedure
andamendedminimum)oprminima
PN Noiseoperatingrestrictions noiseoprrestrictionsPO Obstacleclearancealtitude ocaPP Obstacleclearanceheight ochPR Radiofailureprocedure radiofailureprocPT Transitionaltitude transitionaltPU Missedapproachprocedure(specifyrunway) missedapchprocPX Minimumholdingaltitude(specifyfix) mnmhldgaltPZ ADIZprocedure adizproc
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSNavigationWarnings:AirspaceRestrictions(R)
Code Signification UniformAbbreviatedPhraseology
RA Airspacereservation(specify) airspacereservationRD Dangerarea(specifynationalprefixand
number)..d..
RO Overflyingof...(specify) overflyingRP Prohibitedarea(specifynationalprefixand
number)..p..
RR Restrictedarea(specifynationalprefixandnumber)
..r..
RT Temporaryrestrictedarea temporestricted
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSNavigationWarnings:Warnings(W)
Code Signification UniformAbbreviatedPhraseologyWA Airdisplay airdisplayWB Aerobatics aerobatics
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WC Captiveballoonorkite captiveballoonorkiteWD Demolitionofexplosives demolitionofexplosivesWE Exercises(specify) exerWF Airrefueling airrefuelingWG Gliderflying gliderflyingWJ Banner/targettowing banner/targettowingWL Ascentoffreeballoon ascentoffreeballoonWM Missile,gunorrocketfiring frngWP Parachutejumpingexercise(PJE) pjeWS Burningorblowinggas burningorblowinggasWT Massmovementofaircraft massmovofacftWV Formationflight formationfltWZ modelflying modelflying
THENOTAMCODEDECODE
SECONDANDTHIRDLETTERSOtherInformation(O)
Code Signification UniformAbbreviatedPhraseologyOA Aeronauticalinformationservice aisOB Obstacle(specifydetails) obstOE Aircraftentryrequirements acftentryrqmntsOL Obstaclelightson...(specify) obstlgtOR Rescuecoordinationcentre rcc
THENOTAMCODEDECODE
FOURTHANDFIFTHLETTERSAvailability(A)
Code Signification UniformAbbreviatedPhraseology
AC Withdrawnformaintenance withdrawnmaintAD Availablefordaylightoperation avbldayopsAF Flightcheckedandfoundreliable fltckokayAG Operatingbutgroundcheckedonly,awaiting
flightcheckoprawaitingfltck
AH Hoursofservicearenow hrserAK Resumednormaloperations okayAM Militaryoperationsonly milopsonlyAN Availablefornightoperation avblnightopsAO Operational oprAP Available,priorpermissionrequired avblppr
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AR Availableonrequest avblo/rAS Unserviceable u/sAU Notavailable(specifyreasonifappropriate) notavblAW Completelywithdrawn withdrawnAX Previouslypromulgatedshutdownhasbeen
cancelledpromulgatedshutdowncnl
THENOTAMCODE
DECODEFOURTHANDFIFTHLETTERS
Changes(C)Code Signification UniformAbbreviated
PhraseologyCA Activated actCC Completed cmplCD Deactivated deactivatedCE Erected erectedCF Operatingfrequency(ies)changedto freqchangeCG Downgradedto downgradedtoCH Changed changedCI Identificationorradiocallsignchanged
toidentchange
CL Realigned realignedCM Displaced displacedCO Operating oprCP Operatingonreducedpower oprreducedpwrCR Temporarilyreplacedby temporplcdbyCS Installed installedCT Ontest,donotuse ontest,donotuse
THENOTAMCODEDECODE
FOURTHANDFIFTHLETTERSHazardConditions(H)
Code Signification UniformAbbreviatedPhraseology
HA Brakingactionis... bais1)Poor
2)Medium/Poor
3)Medium
4)Medium/Good
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5)Good
HB Brakingcoefficientis...(specifymeasurementdeviceused)
brkgcoefficientis
HC Coveredbycompactedsnowtodepthof covcompactedsnowdepth
HD Coveredbydrysnowtoadepthof covdrysnowdepth
HE Coveredbywatertoadepthof covwaterdepth
HF Totallyfreeofsnowandice freeofsnowandice
HG Grasscuttinginprogress grasscuttingHH Hazarddueto(specify) hazarddueHI Coveredbyice coviceHJ Launchplanned...(specifyballoonflightidentification
orprojectCodename,launchsite,plannedperiodoflaunch(es)_date/time,expectedclimbdirection,estimatetimetopass18,000m(60,000ft),togetherwithestimatedlocation)
launchplan
HK Migrationinprogress migrationinpr
HL Snowclearancecompleted snowclrcmplHM Markedby markedbyHN Coveredbywetsnoworslushtoadepthof covwetsnow
depthHO Obscuredbysnow obscuredby
snowHP Snowclearanceinprogress snowclrinprHQ Operationcancelled...(specifyballoonflight
identificationorprojectCodename)oprcnl
HR Standingwater standingwater
HS Sandinginprogress sandingHT Approachaccordingtosignalareaonly apch
accordingsignalareaonly
HU Launchinprogress...(specifyballoonflightidentificationorprojectCodename,launchsite,date/timeoflaunch(es),estimatedtimepassing18,000m(60,000ft),orreachingcruisinglevelifatorbelow18,000m(60,000ft),togetherwithestimatedlocation,estimateddate/timeofterminationoftheflight,andplannedlocationofgroundcontactwhenapplicable)
launchinpr
HV Workcompleted workcmpl
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HW Workinprogress wipHX Concentrationofbirds bird
concentrationHY Snowbanksexist(specifyheight) snowbanks
hgtHZ Coveredbyfrozenrutsandridges covfrozen
rutsandridges
THENOTAMCODE
DECODEFOURTHANDFIFTHLETTERS
Limitations(L)Code Signification UniformAbbreviated
PhraseologyLA Operatingonauxiliarypowersupply oprauxpwrLB Reservedforaircraftbasedtherein reservedforacftbasedthereinLC Closed clsdLD Unsafe unsafeLE Operatingwithoutauxiliarypower
supplyoprwithoutauxpwr
LF Interferencefrom interferencefromLG Operatingwithoutidentification oprwithoutidentLH Unserviceableforaircraftheavierthan u/sacftheavierthanLI ClosedtoIFRoperations clsdifropsLK Operatingasafixedlight oprasflgtLL Usableforlengthof...andwidthof... usablelength/widthLN Closedtoallnightoperations clsdnightopsLP Prohibitedto prohibitedtoLR Aircraftrestrictedtorunwaysand
taxiwaysacftrestrictedtorwyandtwy
LS Subjecttointerruption subjintrpLT Limitedto limitedtoLV ClosedtoVFRoperations clsdvfropsLW Willtakeplace willtakeplaceLX Operatingbutcautionadviseddueto oprbutcautiondue
THENOTAMCODEDECODE
FOURTHANDFIFTHLETTERSOther(XX)
Code Signification UniformAbbreviated
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PhraseologyXX Where4thand5thletterCodedoesnotcoverthe
situation,useXXandsupplementbyplainlanguage(plainlanguagefollowingtheNOTAMCode)
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