What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23)The pilot left the master switch on the night before the incident, and the battery was drained in order to get the aircraft started the pilot propped the airplane. The airplane was not tied down nor was it chalked. The pilot had his wife, a non-rated pilot, in the airplane to throttle back if the airplane was idling too fast once started. Instead she added full throttle and the airplane lurched forward and hit N1668F, a Cessna 172.
As the FAA filed it
(-23)THE PILOT LEFT THE MASTER SWITCH ON THE NIGHT BEFORE THE INCIDENT, AND THE BATTERY WAS DRAINED IN ORDER TO GET THE AIRCRAFT STARTED THE PILOT PROPPED THE AIRPLANE. THE AIRPLANE WAS NOT TIED DOWN NOR WAS IT CHALKED. THE PILOT HAD HIS WIFE, A NON-RATED PILOT, IN THE AIRPLANE TO THROTTLE BACK IF THE AIRPLANE WAS IDLING TOO FAST ONCE STARTED. INSTEAD SHE ADDED FULL THROTTLE AND THE AIRPLANE LURCHED FORWARD AND HIT N1668F, A CESSNA 172.