Federal Aviation Administration Abbreviations and Acronyms

1. SOITDF
   Start of Inbound Transmit Data Frame
2. SOITMF
   Start of Inbound Transmit Master Frame
3. SORDF
   Start of Receive Data Frame
4. SORSF
   Start of Receive Super Frame
5. SPROCET
   Safety Process Engineering Team
6. SSPPR
   System Safety Program Progress Report
7. ST-2
   Internet Streams Protocol, Version 2
8. TNDD
   Terrestrial Network Design Document
9. TNIFR
   Terminal Navigation Instrument Flight Rules
10. TXSU(N)
    Process for Transportation of a burst of N sus (block TTP)
11. UDREI
    User Differential Range Estimate Indicator
12. UHNE
    User Horizontal Navigation Error
13. UNDGEN
    Upload Navigation Data Generator
14. VPET
    Vertical Position Error Threshold
15. VVASI
    VASI Visual Approach Slope Indicator
16. Y-code
    Encrypted DoD Information on L2
17. ZJX
    Hillard Area ARTCC (Hillard, FL)
18. RY/RWY
    Runway
19. I/0
    Input/Output
20. R.M.S.
    Root Mean Square

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