FAA incident report · Cessna 421B · Mesa, AZ · August 15, 1989
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.
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Right engine rough. Oil from cowling. Shut engine down. NR6 cylinder rocker arm shaft hold down bolts had failed.
RIGHT ENGINE ROUGH. OIL FROM COWLING. SHUT ENGINE DOWN. NR6 CYLINDER ROCKER ARM SHAFT HOLD DOWN BOLTS HAD FAILED.