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.
N143K engine running rough at cruise altitude after switching fuel tanks. Switched back fuel tanks and engine still running rough.
N143K requested to go back to kcno. N143K landed safely without further incident.
09/13/2012 - #4-6 Engine spark plugs were fouled, spark plugs were cleaned and aircraft was returned to service.
As the FAA filed it
N143K ENGINE RUNNING ROUGH AT CRUISE ALTITUDE AFTER SWITCHING FUEL TANKS. SWITCHED BACK FUEL TANKS AND ENGINE STILL RUNNING ROUGH.
N143K REQUESTED TO GO BACK TO KCNO. N143K LANDED SAFELY WITHOUT FURTHER INCIDENT.
09/13/2012 - #4-6 ENGINE SPARK PLUGS WERE FOULED, SPARK PLUGS WERE CLEANED AND AIRCRAFT WAS RETURNED TO SERVICE.