Airway Abbreviations and Acronyms

1. TSR
   Track Swop Rate
2. TSS
   Target Software Server
3. TST
   Trajectory Support Tool
4. TSW
   Thunderstorm With Snow Shower
5. TT
   Teletype
6. TTAF&E
   Total Time Airframe & Engine
7. TTF
   Total Flights
8. TTOH
   Time Till Overhaul
9. TTS
   Trails Transport Service
10. TTW
    Time To Waypoint
11. TTY
    Teletype
12. TUM
    Time Update Message
13. TV
    Traffic Volume
14. TVASI
    “Tee” Visual Approach Slope Indicator
15. TVBC
    Turbine Vane and Blade Cooling
16. TVC
    Turbine Vane Cooling
17. TVP
    Type Validation Principles
18. TW
    Tailwind
19. TWI
    Turminal Weather Information
20. TWLU
    Terminal Wireless Lan Unit

Last updated: January 4, 2020 — Total entries: 3,568