What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On initial landing at a newly prepared prival runway, the tailwheel struck a large rock, which caused the tailwheel mount rivets to fail. The tailwheel then jammed the rudder, which caused a loss of control. The aircraft ground looped, hitting the right wingtip. The aircraft nosed into a ditch, which caused the aircraft to come to rest in a tail-high attitude. There was damage to both wings, a strut, the engine mount and the boot cowl.
As the FAA filed it
(-23) ON INITIAL LANDING AT A NEWLY PREPARED PRIVAL RUNWAY, THE TAILWHEEL STRUCK A LARGE ROCK, WHICH CAUSED THE TAILWHEEL MOUNT RIVETS TO FAIL. THE TAILWHEEL THEN JAMMED THE RUDDER, WHICH CAUSED A LOSS OF CONTROL. THE AIRCRAFT GROUND LOOPED, HITTING THE RIGHT WINGTIP. THE AIRCRAFT NOSED INTO A DITCH, WHICH CAUSED THE AIRCRAFT TO COME TO REST IN A TAIL-HIGH ATTITUDE. THERE WAS DAMAGE TO BOTH WINGS, A STRUT, THE ENGINE MOUNT AND THE BOOT COWL.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.