I had my phantom 3 pro fall from 400 ft yesterday to be totaled. From reviewing the video we can see a prop fly off during a hovering shot and then the bare arm and motor in frame as the bird came down. Props were all snugged on before flight. Found undamaged prop 25 yards away. Upon inspecting the phantom the motor that which the prop came off was jammed and grinding. I believe that the motor must have jammed and stopped so hard in flight that the prop spun itself off? No warning at all. Had 75% of battery left and had been flying several times before this happened. Makes me sick. Waiting until after the weekend to try and see if dji will be able to do anything to help.