Lakewood

Prior to flight the spark plugs on both engines were replaced due to minor engine vibration and the landing gear retract system wiring repaired due to the gear not retracting electrically on a prior occasion. After takeoff the gear would not retract electrically and the passenger had to crank up the gear manually. After the parachute jump the pilot shut down the left engine to isolate the vibration. He then started the left engine and feathered the right engine. Unable to unfeather the right engine he elected to land with full flaps and gear down after a straight-in approach. As he approached the threshold a Cessna 150 taxied onto the runway. The pilot executed a go-around while trying to retract the flaps and gear electrically without results. The passenger was attempting to retract the gear manually when the aircraft struck a tree. The pilot stated he did not make his landing intentions known on unicom during the approach. No pre-impact discrepancies were found to preclude normal prop operation. Normal elect power is halved with one generation inoperative.

The single engine airplane was engaged in a local skydiving exercice. While taking off from Lakewood, the engine stopped. The airplane lost height, struck trees and crashed. The pilot and two passengers were seriously injured while seven other occupants were slightly injured. The aircraft was damaged beyond repair.