Just got my Phantom 2 last week and flew it very successfully a half a dozen times and it flew flawlessly. Yesterday, as I was descending, at about 30-40 feet high, I heard what sounded like a propeller hitting plastic and suddenly it tumbled to the ground and crashed. There was damage to the fuselage and the H3-3D gimbal is severely bent. After careful inspection, one of the prop motors was dangling and all 4 screws were missing. I suspect the screws came out in flight and allowed the motor to work its way out of the mount. I am suspect about the assembly and going to request DJI replace my Phantom. Has this happened to any Phantom pilots out there?