What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
N60558 was preparing for a local flight when, during the initial start up of the day, the engine was cold and apparently difficult to start. After running briefly, the engine quit, and the pilot attempted a flooded start when smoke and flames were evident from the aft engine cowling. The pilot and passenger turned off the ignition and fuel and made an emergency exit from the aircraft. Everett/Paine Field fire department was called from the airport traffic control tower and they responded to the ramp where the aircraft was parked. The fire was immersed in foam, and extinguished. The pilot and passenger indicated no injuries and remained in the vicinity of the aircraft until the fire department finished. The aircraft did not move from its location during the event. Airworthiness investigated and suspected the carburetor had flooded, and when started, backfired, igniting the residual fuel overspill. No operational error indicated. NTSB released to FAA, and amended the accident to an incident.
As the FAA filed it
N60558 WAS PREPARING FOR A LOCAL FLIGHT WHEN, DURING THE INITIAL START UP OF THE DAY, THE ENGINE WAS COLD AND APPARENTLY DIFFICULT TO START. AFTER RUNNING BRIEFLY, THE ENGINE QUIT, AND THE PILOT ATTEMPTED A FLOODED START WHEN SMOKE AND FLAMES WERE EVIDENT FROM THE AFT ENGINE COWLING. THE PILOT AND PASSENGER TURNED OFF THE IGNITION AND FUEL AND MADE AN EMERGENCY EXIT FROM THE AIRCRAFT. EVERETT/PAINE FIELD FIRE DEPARTMENT WAS CALLED FROM THE AIRPORT TRAFFIC CONTROL TOWER AND THEY RESPONDED TO THE RAMP WHERE THE AIRCRAFT WAS PARKED. THE FIRE WAS IMMERSED IN FOAM, AND EXTINGUISHED. THE PILOT AND PASSENGER INDICATED NO INJURIES AND REMAINED IN THE VICINITY OF THE AIRCRAFT UNTIL THE FIRE DEPARTMENT FINISHED. THE AIRCRAFT DID NOT MOVE FROM ITS LOCATION DURING THE EVENT. AIRWORTHINESS INVESTIGATED AND SUSPECTED THE CARBURETOR HAD FLOODED, AND WHEN STARTED, BACKFIRED, IGNITING THE RESIDUAL FUEL OVERSPILL. NO OPERATIONAL ERROR INDICATED. NTSB RELEASED TO FAA, AND AMENDED THE ACCIDENT TO AN INCIDENT.