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.
Narrative: at 1718 PDT on August 15, 1997, CE172H N1631F landed safely at smf after declaring an emergency 4 miles west-northwest of smf due to rough engine. The problem was later diagnosed as a stuck exhaust valve.
As the FAA filed it
NARRATIVE: AT 1718 PDT ON AUGUST 15, 1997, CE172H N1631F LANDED SAFELY AT SMF AFTER DECLARING AN EMERGENCY 4 MILES WEST-NORTHWEST OF SMF DUE TO ROUGH ENGINE. THE PROBLEM WAS LATER DIAGNOSED AS A STUCK EXHAUST VALVE.