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) 

