What was the issue here? Strange behaviour

ArduPlane Plane 4.0
1

Hi guys,

I just did a test with one of my planes and I had an issue. I lost the RC and instead of returning to home, the plane passed home point and flies away another 500m and start rolling and losing altitude, crashing 1 km away from home.

Flight log: Download link
I attached the log if anyone can explain me what happened there. Thank you.

2

Hi Michael,

Your plane started to come home (RTL) until an aileron servo failure occurred.
The plane kept rolling until it crashed.

Shown in the graph below.

aileron_fail
aileron_fail1202×664 72.3 KB

Hope this helps.

3

Thanks. Yes, that is what was happened.
Thank you.