Federal Aviation Administration Abbreviations and Acronyms

1. TROPOSP
   Troposphere
2. TRP
   Troposphere Parameters
3. TSARC
   Transportation System Acquisition Review Council
4. TSE
   Total System Error
5. TSO
   Technical Standard Order
6. TSPI
   Time-Space Position Indicator
7. TSS
   Test Support Software
8. TSS
   Test Support System
9. TT&C
   Tracking, Telemetry and Control
10. TTA
    Time-To-Alarm
11. TTA
    Time to Alert
12. TTAC
    Test Tube Advisory Committee
13. TTFF
    Time To First Fix
14. TTL
    Transistor Logic
15. TTL
    Transistor Transistor Logic
16. TTSF
    Time To Subsequent Fix
17. TUP
    Telephone User Part of CCITT Signaling System #7
18. TVSR
    Terminal Voice Switch Replacement
19. TWDR
    Terminal Doppler Weather Radar
20. TWIP
    Terminal Weather Information for Pilots

Last updated: September 10, 2020 — Total entries: 2,563