GOING TO THE WORK STATION, HE WAS LOADING THE TRANSPORTATION TRUCK TO GO TO THE DRILL SITE. AS HE WAS CLIMBING ONTO THE MOTOR, HE WAS GRABBING THE DOOR HANDLE AND THE DOOR FLEW OPEN, CAUSING H IM TO FALL BACKWARD AND DOWN APPROX 6' ONTO THE GRIZZLY, CAUSING INJURY TO HIS BUTTOCKS.