Recently I had a very serious crash with my P3. At 72 meters it just went crazy, flipped all over the place and came down hitting the roof.  All this wotout any commands or assistance from me. I'm waiting for decision from DJI in Holland after sending them the flight record. Comments?  

We can't really comment without seeing some kind of data from the flight.

Try http://www.phantomhelp.com/LogViewer/Upload/ & post a link to the results.