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) Aircraft started running rough. Pilot landed in cut hay field. No damage to aircraft or injuries. Investigation revealed #1 cylinder had no compression due to broken intake valve retaining washer.
As the FAA filed it
(-23) AIRCRAFT STARTED RUNNING ROUGH. PILOT LANDED IN CUT HAY FIELD. NO DAMAGE TO AIRCRAFT OR INJURIES. INVESTIGATION REVEALED #1 CYLINDER HAD NO COMPRESSION DUE TO BROKEN INTAKE VALVE RETAINING WASHER.