From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) At approximately 25 knots, on landing roll, shimmy was detected for just a few seconds followed by a "thump" and the tail dropping. Unaware of what was wrong with the aircraft, the pilot elected to exit the runway into the grass. After shut down and exiting the aircraft, it was discovered that the tail wheel had broken off of the aircraft.
As the FAA filed it
(-23) AT APPROXIMATELY 25 KNOTS, ON LANDING ROLL, SHIMMY WAS DETECTED FOR JUST A FEW SECONDS FOLLOWED BY A "THUMP" AND THE TAIL DROPPING. UNAWARE OF WHAT WAS WRONG WITH THE AIRCRAFT, THE PILOT ELECTED TO EXIT THE RUNWAY INTO THE GRASS. AFTER SHUT DOWN AND EXITING THE AIRCRAFT, IT WAS DISCOVERED THAT THE TAIL WHEEL HAD BROKEN OFF OF THE AIRCRAFT.