drone dropped my log file can you review and comment

ArduCopter
1

my drone dropped.
my log file can you review and comment.
thnks.

2

There was an extremely high vibration event that occurred which caused the motor outputs to go crazy. If it wasn’t so high in altitude I would say you hit something. Possibly the Flight Controller came loose from it’s mount.Is there any evidence left from the crash to determine this?

Vibe event accels:

High%20Vibe%20event%20accels
High Vibe event accels.JPG1706×601 128 KB

Resulting motor outputs:

High%20Vibe%20event%20rc%20outs
High Vibe event rc outs.JPG1701×608 154 KB

3

Thanks for be interested.
After the accident, one of the engine was dislodged and there were no propellers in an engine.