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INS drifting in pitch and roll

Posted by Jason McCarthy on January 11, 2014 at 9:41pm

Hi Guys,

I have seen my Artificial Horizon start rotating 360 degrees in roll without the aircraft moving. I have also seen the INS level change inflight causing the aircraft to start rolling left and pitching down.

I have included a short Tlog of it sitting on the ground with the PFD spinning around by itself.

Thanks

JAson

2014-01-12 15-05-53.tlog

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Replies

  • 100KM
    Hein du Plessis January 12, 2014 at 5:51am

    I had exactly the same issue a few apms ago.. it eventually went away. It would only surface after I've flown once and it's landed and on the ground. Except the one time... it was in auto and quite a fight to keep it from killing itself!

  • Developer
    Randy January 11, 2014 at 10:32pm

    It might be related to a blown 3.3V regulator.  discussion is here.

This reply was deleted.

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