What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Acft nosed over after landing. (-23) the accident aircraft was number two, of a flight of two, that had just made a lose trail formation landing on runway 25 at San Luis Obispo County Airport. The pilot mistook a dark rectangle painted on the runway for the aircraft he was following and applied maximum braking to avoid a collision. As a result of the heavy braking the experimental starduster nosed over on it's back, causing substantial damage to the aircraft. The pilot, the sole occupant of the aircraft was not injured.
As the FAA filed it
ACFT NOSED OVER AFTER LANDING. (-23) THE ACCIDENT AIRCRAFT WAS NUMBER TWO, OF A FLIGHT OF TWO, THAT HAD JUST MADE A LOSE TRAIL FORMATION LANDING ON RUNWAY 25 AT SAN LUIS OBISPO COUNTY AIRPORT. THE PILOT MISTOOK A DARK RECTANGLE PAINTED ON THE RUNWAY FOR THE AIRCRAFT HE WAS FOLLOWING AND APPLIED MAXIMUM BRAKING TO AVOID A COLLISION. AS A RESULT OF THE HEAVY BRAKING THE EXPERIMENTAL STARDUSTER NOSED OVER ON IT'S BACK, CAUSING SUBSTANTIAL DAMAGE TO THE AIRCRAFT. THE PILOT, THE SOLE OCCUPANT OF THE AIRCRAFT WAS NOT INJURED.