What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot and passengers (2) boarded the aircraft with the intention of flight. The aircraft would not start due to a weak battery. Pilot set parking brake and instructed the passenger in the front seat to hold the brakes while he attempted to hand prop the aircraft. It did not start on the first try and the pilot set the throttle to one-third open. Tried the hand prop maneuver again and the engine started. The passenger failed to properly apply brake pressure and the aircraft rolled aggressively toward adjacent t-hangars where it collided with the parked Piper saratoga, N243PS.
As the FAA filed it
(-23) PILOT AND PASSENGERS (2) BOARDED THE AIRCRAFT WITH THE INTENTION OF FLIGHT. THE AIRCRAFT WOULD NOT START DUE TO A WEAK BATTERY. PILOT SET PARKING BRAKE AND INSTRUCTED THE PASSENGER IN THE FRONT SEAT TO HOLD THE BRAKES WHILE HE ATTEMPTED TO HAND PROP THE AIRCRAFT. IT DID NOT START ON THE FIRST TRY AND THE PILOT SET THE THROTTLE TO ONE-THIRD OPEN. TRIED THE HAND PROP MANEUVER AGAIN AND THE ENGINE STARTED. THE PASSENGER FAILED TO PROPERLY APPLY BRAKE PRESSURE AND THE AIRCRAFT ROLLED AGGRESSIVELY TOWARD ADJACENT T-HANGARS WHERE IT COLLIDED WITH THE PARKED PIPER SARATOGA, N243PS.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.