20001224027749A

(-23)The pilot stated he attempted to start the a/c's engine for flight and after several attempts the starter gear did not engage, the pilot further stated he turned off the master switch and key before attempting to turn over the engine with the propeller. The pilot stated he did not set the parking brake, did not reduce the throttle to idle, did not retard the fuel mixture to full lean, and did not tie down the a/c before or after he exited the a/c to turn over the engine with the propeller. No one remained in the a/c as a safety observer. The pilot further stated that the engine started suddenly and unexpectedly when he turned the propeller by hand. He said he ducked to his right as the a/c passed over him. He said he then turned and saw his a/c impact the starboard tip tank of a Cessna 310 (N1737E) parked on the ramp in front of his a/c. the pilot stated his a/c swung around to the right and further impacted the Cessna 310 on the starboard side aft of the wing and came to a stop after puncturing holes on both sides of the aft fuselage.