Thread: Trig TT21 Transponder receives FAA TSO approval
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Old September 18th 09, 02:30 PM posted to rec.aviation.soaring
jcarlyle
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Default Trig TT21 Transponder receives FAA TSO approval
Trig hasn't posted anything yet, but look he

http://rgl.faa.gov/Regulatory_and_Gu...2?OpenDocument
http://rgl.faa.gov/Regulatory_and_Gu...1?OpenDocument
http://rgl.faa.gov/Regulatory_and_Gu...D?OpenDocument

The TT21/TC20 transponder received FAA approval for TSOs C112c (Mode
S), C166a (ADS-B and TIS-B), and C88b (Altitude Encoder) on 10 Sep
2009. So it's now official...

-John