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Topic-icon Narco AT 150 TSO transponder w/Mode C

  • TomThompson
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4 years 3 months ago #30

My 1969 PA 200R Arrow is having intermittent transponder signals, causing problems for ATC. I am told problem is tubes are bad, and will only get worse. Narco is no longer in business, Garmin is not in replacement business.

Any suggestions or other remedies?

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  • Jen D
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4 years 3 months ago #31

Hi Tom,
Check with Texas State Technical College www.terraavionics.com and Soloy www.soloy.com/capabilities/faa+approved+...station/default.aspx

Both handle some transponder inspection and repair, I don't know if your specific model will be covered. Both are Piper Flyer supporters.


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