Hey guys, I'd like some feedback on this incident and the events leading up to it. Just curious as to what your opinions are and how you would've handled the situation. History: On 16 June we experienced a compass error and fly away. (I couldn't attend the shoot as I had other pressing work, so my business partner did the piloting. All MOD values were good at take-off so I advised against doing a compass cal.) Anyway, when he could not get the craft back he landed in a field. The landing was soft but the craft tipped over. The pilot did a CSC and stopped the motors. No visible damage anywhere. He then moved to the next location for the day. Here he did a fresh compass calibration, but upon take-off the the right rear motor stopped (or never started, pilot wasn't sure) and the craft tipped over. The following day the craft was inspected by a DJI supplier and all motors were running fine, even when applying resistance to the motors. On 24 June we did a test flight, flying very low for 17mins, then immediately measured the temperature of each motor using a laser temperature gauge. All motors were the same temp. We flew 3 more successful missions with no incident. (I've heard reports of pilots recovering their crashed Inspires with motors smoking and not having problems with the motors afterwards.) Incident: Then on Sunday morning 5 July 2015 I was flying over a lake when our Inspire 1 suddenly, and without warning fell out of the sky like a stone. From the footage it appears to pitch back and to the right, so I suspect that either the right rear motor or ESC failed. I was about 22m above my take-off spot (which was about 6m above the lake), flying west against the wind when the incident happened. I was able to recover the craft from the lake, but it had spent about 3 hour in approximately 3m of fresh water. All the props were still attached, but the gimbal had been torn off. We recovered that as well. Password: tmc2015 Followup: With the Inspire dead, I decided to take it apart and have a "peek under the hood". I must confess I rather enjoyed taking the old girl apart. When opening the motors I found something interesting. The motors on the left side of the craft looks perfect, but the ones on the right both have blackened copper wiring, as if it had burnt (see attached photos). I wonder what could've caused the blackened copper wiring? Looking forward to your constructive comments and opinions.