U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
Air Traffic Organization Policy

ORDER
JO 7340.2E
Effective Date:
July 24, 2014
 
     

Subject:  Contractions
   
Includes Change 1 dated 11/13/14

[Back to Section 2. Encode]

T

Definition

Contraction

Usage

T visual approach slope indicator system

T­VASIS

ICAO

TACAN only

TAO

ATC

tactical air command liaison officer

TACLO

GEN

tactical air navigation

TACR

GEN

tactical air navigational aid

TACAN

GEN

tactical customer advocate

TCA

ATC

tail wind

TAIL

ICAO

tailwind

TLWD

ATC

take­off

TKOF

ICAO

take­off distance available

TODA

ICAO

take­off gross weight

TOG

GEN

take­off run available

TORA

ICAO

tandum

TAND

GEN

taxiing

TXG

ATC

taxiing guidance system

TGS

ICAO

taxiway

TWY

ICAO

taxiway link

TWYL

ICAO

team supervisor

TS

GEN

Technical Center, FAA

ACT

GEN

technical reason

TECR

ICAO

technical standard order

TSO

GEN

teleautograph

TELAU

GEN

telecommunications

TEL

GEN

telegraph reply

TELRY

GEN

Telemetry

TLM

ATC

telephone

FONE

GEN

telephone

TEL

ICAO

telephone company

TELCO

GEN

telephone conference

TELCON

GEN

telephone exchange

TELEX

GEN

teletype switching facilities

TTS

GEN

teletypewriter

TT

GEN

teletypewriter communications out of service

TYPNO

GEN

teletypewriter communications returned to service

TYPOK

GEN

teletypewriter exchange service

TWX

GEN

teletypewriter station

TTY

GEN

temperature

T

ICAO

temperature

TEMP

GEN

temperature (PIREP only)

TA

ATC

temporary

TEMPO

ICAO 

temporary

TMPRY

GEN

temporary appointment pending establishment of a register

TAPER

GEN

temporary duty

TDY

GEN

temporary flight restriction TFR GEN

temporary reserved airspace

TRA

ICAO

tendency

TNDCY

GEN

tentative

TNTV

GEN

terminal

TRML

GEN

terminal area chart

TAC

GEN

terminal area surveillance radar

TAR

ICAO

terminal area surveillance radar

TASR

GEN

terminal automated radar services

TARS

GEN

terminal communications

TCOM

GEN

terminal control area

TCA

GEN

terminal control area

TMA

ICAO

Terminal Data Link System

TDLS

GEN

Terminal Doppler Weather Radar

TDWR

ATC

terminal forecast

TAF

METAR

terminal information processing system

TIPS

GEN

terminal instrument procedures

TERPS

GEN

terminal radar

TRAD

GEN

terminal radar approach control facility

TRACON

GEN

terminal radar approach control in tower cab

TRACAB

GEN

terminal radar service area

TRSA

GEN

terminal secondary radar beacon

TSEC

GEN

terminal VOR

TVOR

GEN

terminate

TRMT

GEN

terrain

TRRN

GEN

terrain following

TF

GEN

Tethered Aerostat Radar System

TARS

GEN

tetrahedron

TET

GEN

Text

TXT

ICAO

The last message received by me was ….

LR

ICAO

The last message sent by me was …or last message was …

LS

ICAO

thereafter

THRFTR

GEN

thick

THK

NWS

thin

THN

NWS

This is a channel­continuity­check of transmission to permit comparison of your record of channel­ sequence numbers of messages received on the channel

CH

ICAO

This is a duplicate message (to be used in AFS as a procedure signal)

DUPE

ICAO

thousand

THSD

GEN

threaten

THTN

GEN

threshold

THLD

GEN

threshold

THR

ICAO

threshold crossing height

TCH

GEN

threshold crossing height downwind

TCHD

GEN

threshold crossing height upwind

TCHU

GEN

through

THRU

GEN

throughout

THRUT

GEN

thunder

THDR

NWS

thunderhead

THD

NWS

thunderstorm

TS

METAR

thunderstorm

TSTM

NWS

thunderstorm information not available

TSNO

METAR

thunderstorm with duststorm or sandstorm

TSSA

METAR

thunderstorm with hail

TSGR

METAR

thunderstorm with ice pellets

TSPL

METAR

thunderstorm with rain

TSRA

METAR

thunderstorm with small hail

TSGS

METAR

thunderstorm with snow

TSSN

METAR

time (PIREP only)

TM

ATC

time and altitude over

TAO

ATC

time and attendance report

TANDA

GEN

time check

TC

ATC

time delay

TDEL

GEN

Time Dilution of Precision

TDOP

ATC

time of delivery

TOD

GEN

time of receipt

TOR

GEN

time of transmission

TOT

GEN

to be continued

TOC

GEN

today

TDA

GEN

tolerance

TLRNC

GEN

tomorrow

TMW

GEN

tonight

TNGT

GEN

too long to print

TLTP

GEN

top of climb

TOC

ICAO

top of overcast

TOVC

NWS

topping

TPG

NWS

tornado

TDO

ICAO

tornado/water spout

+FC

METAR

total aboard

TA

GEN

touch and go landing

TGL

ICAO

touchdown

TD

ATC

touchdown zone

TDZ

ICAO

touchdown zone elevation

TDZE

ATC

touchdown zone light (system)

TDZL

GEN

toward

TWD

GEN

tower

TWR

GEN

tower en route control

TEC

ATC

tower en route control area

TECA

ATC

towering

TWRG

NWS

towering cumulus

TCU

NWS

trace (weather reports only)

T

NWS

track

TR

ICAO

traffic

TFC

ICAO 

traffic alert and collision avoidance system

TCAS

GEN

traffic flow management system

TFMS

ATC

Traffic information broadcast by aircraft

TIBA

ICAO

traffic management

TM

ATC

traffic management program alert

TMPA

ATC

traffic on request

TOR

ATC

traffic pattern altitude

TPA

ATC

traffic received

TFRCD

ATC

traffic zone

TFZ

GEN

training

T

GEN

training

TRNG

GEN

Trans­Atlantic

TSATLC

GEN

trans­continental

TCNTL

GEN

transcribed weather broadcast

TWEB

GEN

transfer

TSFR

GEN

transfer of control point

TCP

ATC

transient

TRAN

ATC

transient

TSNT

GEN

transition

TRSN

GEN

transition altitude

TA

ICAO

transition level

TRLVL

ICAO

transmit

TMT

GEN

transmit or transmitter

TRANS

ICAO

transmitter distributor

TD

GEN

transmitter station

TS

GEN

transmitting capability out of service

TSMNO

GEN

transmitting capability returned to service

TSMOK

GEN

Trans­Pacific

TSPAC

GEN

transponder

PARROT

GEN

transponder inoperative

TINOP

ATC

transport

TRNSP

GEN

Transport One­Secretary of Transportation

DOT­1

ATC

Transport Two­Deputy Secretary of Transportation

DOT­2

ATC

transportation request

T/R

GEN

Transportation Security Administration

TSA

GEN

trapping layer

TRPLYR

NWS

travel

TVL

GEN

travel arrangements without government expense

TAWOG

GEN

travel order

TO

GEN

treated

TRTD

GEN

trend

TEND

ICAO

tributary

TRIB

NWS

tri­color visual approach slope indicator

TRCV

GEN

tropical

TRPCL

NWS

tropical (air mass)

T

NWS

tropical continental (air mass)

TRPCD

NWS

tropical cyclone

TC

ICAO

tropopause

TROP

NWS

trouble

TRBL

GEN

trough

TROF

NWS

true (bearing)

T

GEN

true air speed

TAS

GEN

true bearing

QTE

ICAO

turbojet

TBJT

GEN

turbulence

TURB

ICAO

turbulence

TURBC

NWS

turbulence (PIREP only)

TB

ATC

turbulent

TURBT

NWS

turn altitude

TNA

ICAO

turn around

TARND

ATC

turn height

TNH

ICAO

turn left after take­off

LT

ATC

Turning point

TP

ICAO

Twilight

TWI

GEN

type aircraft

TYP

ICAO

type aircraft (PIREP only)

TP

ATC

Typhoon

TYPH

ICAO

 

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