Unexplained "Fly Away"?

https://www.dropbox.com/s/mzl71kz5ezk49bi/00001.MTS?n=23012835A friend of mine was flying his Pixhawk equipped quad over the weekend and had a strange thing happen. Firstly, He was flying in an inappropriate location for a loiter flight (in a narrow corridor of trees) and with a high HDOP (average 2.17). Right before the 6 minute mark in the flight, the copter just banked to its left and started trimming trees and mowing grass. I believe the cause for the crash was poor HDOP and the loss of a Satellite (dropped from 8 to 7) but I would just like to verify that this was indeed the reason for the crash.

Here is a video of the crash: https://www.dropbox.com/s/mzl71kz5ezk49bi/00001.MTS?n=23012835

The log file is also attached to this post.

Could someone please confirm that this was indeed responsible for the crash and if so, why the GPS Glitch detection did not activate if it was? It really looks like a fly away which I have never seen with an APM or Pixhawk before.

Thanks,

Oliver

2014-08-01 19-19-51.log

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    • I think its more a problem of the compass.

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