At 1315 eastern time, a Cessna 205 crashed just after takeoff from Greensburg Jeannette Regional Airport, killing the pilot and three skydivers and leaving a fourth skydiver seriously injured. Witnesses said the engine began to sputter when the airplane was about a quarter mile from the runway. The pilot apparently tried to execute a turn back to land in the opposite direction, but the engine stopped sputtering and the turn was continued until the airplane was perpendicular to the runway. The airplane began to climb, then the engine ceased and the airplane crashed into trees. Examination of the wreckage found the fuel in the tanks, lines and boost pump was contaminated. The operator had been fueling the airplane from plastic fuel containers, but the fuel tanks were not found.