SVCO —service O SVFB —interphone service F (B) SVFC —interphone service F (C) SVFD —interphone service F (D) SVFO —interphone service F (A) SVFR —special visual flight rules SW —southwest SWEPT —swept or broom/broomed T  T —temperature  T1MUX —T1 multiplexer  TAA —terminal arrival area  TAAS —terminal advance automation system  TACAN —tactical air navigation  TACR —TACAN at VOR, TACAN only  TAF —terminal area forecast  TAR —terminal area surveillance radar  TARS —terminal automated radar service  TAS —true air speed  TATCA —terminal air traffic control automation  TAVT —terminal airspace visualization tool  TCA —traffic control airport or tower control airport;  terminal control area  TCACCIS —Transportation Coordinator Automated  Command And Control Information System  TCAS —Traffic Alert and Collision Avoidance System  TCC —DOT Transportation Computer Center  TCCC —Tower Control Computer Complex  TCE —tone control equipment  TCLT —tentative calculated landing time  TCO —Telecommunications Certification Officer  TCOM —Terminal Communications  TCS —tower communications system  TDLS —Tower Data-Link Services  TDMUX —time division data multiplexer  TDWR —terminal doppler weather radar  TDZ —touchdown zone  TDZ LG —touchdown zone lights  TELCO —telephone company  TELMS —telecommunications management system  TEMPO —temporary  TERPS —terminal instrument procedures  TFAC —to facility  TFC —traffic  TFR —temporary flight restriction  TGL —touch-and-go landings  TH —threshold  THN —thin  THR —threshold  THRU —through  THU —Thursday  TIL —until  TIMS —telecommunications information management system  TIPS —terminal information processing system  TKOF —takeoff  TL —taxilane  TM —traffic management  TM&O —telecommunications management and operations  TMA —Traffic Management Advisor  TMC —Traffic Management Coordinator  TMC/MC —Traffic Management Coordinator/Military  Coordinator  TMCC —terminal information processing system; Traffic  Management Computer Complex  TMF —Traffic Management Facility  TML —television microwave link  TMLI —television microwave link indicator  TMLR —television microwave link repeater  TMLT —television microwave link terminal  TMP —Traffic Management Processor  TMPA —traffic management program alert  TMS —traffic management system  TMSPS —traffic management specialists  TMU —traffic management unit  TNAV —terminal navigational aids  TODA —takeoff distance available  TOF —time of flight  TOFMS —time of flight mass spectrometer  TOPS —Telecommunications Ordering And Pricing System  (GSA software tool)  TORA —take-off run available  TR —telecommunications request  TRACAB —terminal radar approach control in tower cab  TRACON —Terminal Radar Approach Control Facility  TRAD —terminal radar service  TRB —Transportation Research Board  TRML —terminal  TRNG —training  TRSN —transition  TSA —taxiway safety area; Transportation Security  Administration  TSEC —terminal secondary radar service  TSNT —transient  TSP —telecommunications service priority  TSR —telecommunications service request  TSYS —terminal equipment systems  TTMA —TRACON Traffic Management Advisor  TTY —teletype  TUE —Tuesday  TVOR —terminal VHF omnidirectional range  TW —taxiway  TWEB —transcribed weather broadcast  TWR —tower  TWY —taxiway  TY —type (FAACIS)  B-11 