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6 – i ndex
Area
#TAS
TrueAirspeed
+TAT
Terminal AreaThunderstorm
Service (meteorological term)
TAX
Taxiing, Taxi
TBA
ToBeAdvised
TC
Tropical Cyclone
TCAC Tropical CycloneAdvisory
Centre
+TCAS
(tee-kas) TrafficAlert and
CollisionAvoidanceSystem
TCH
ThresholdCrossingHeight
TCTA
Trans-continental Control Area
TCU
ToweringCumulus
TDO
Tornado
TDZ
TouchdownZone
TECR
Technical Reason
TEL
Telephone
+TEMPO
Temporary, Temporarily
TFC
Traffic
TFR
TerrainFollowingRadar
(by theMIL)
TGL
Touch and go Landing
TGS
TaxiingGuidanceSystem
THR
Threshold
THRU
Through
THU
Thursday
TIBA
Traffic InformationBroadcasts
byAircraft
+TIL
Until
TIP
Until Past (place)
TKOF
Take-off
TL
Until
TLW
Time LimitedWIP (work in
progress)
#TMA
Terminal Control Area
TN
Indicator forMinimum
Temperature (MET-used inTAF
code form)
TNA
TurnAltitude
TNH
TurnHeight
TNS
Transitional Surface
TOC
Top of Climb
TODA
Take-off DistanceAvailable
TOP
CloudTop
TORA
Take-off RunAvailable
TP
TurningPoint
TR
Track
TRA
TemporaryReservedAirspace
#TRA
TemporaryRestrictedArea
TRAN Transition
TRANS
Transmits, Transmitter
TRL
Transition Level
TROP
Tropopause
abbreviations and acronyms
CODE DEFINITION
CODE DEFINITION