What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Mr. Burns hand-propped his aircraft on the ramp in Little Falls, MN., without the use of a qualified person in the cockpit or the use of chocks to secure the airplane. After the engine started, it moved under it's own power across the ramp in a curved ground track until it impacted a building and a plot of pine trees near the terminal building, without a person at the controls.
As the FAA filed it
(-23) MR. BURNS HAND-PROPPED HIS AIRCRAFT ON THE RAMP IN LITTLE FALLS, MN., WITHOUT THE USE OF A QUALIFIED PERSON IN THE COCKPIT OR THE USE OF CHOCKS TO SECURE THE AIRPLANE. AFTER THE ENGINE STARTED, IT MOVED UNDER IT'S OWN POWER ACROSS THE RAMP IN A CURVED GROUND TRACK UNTIL IT IMPACTED A BUILDING AND A PLOT OF PINE TREES NEAR THE TERMINAL BUILDING, WITHOUT A PERSON AT THE CONTROLS.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.