What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
During a normal engine start-up, the aircrew was alerted to an abnormal condition by the ground crew and PIC aborted the left engine start. No fire warnings were triggered in the cockpit during the start sequence. However, ground personnel observed a fire at the left engine and immediately alerted the crew and the airport fire department. Following abort of engine start there were still residual flames coming from the engine nacelle and tailpipe area so PIC elected to discharge the left engine fire extinguisher as a precautionary measure. The fire was fully extinguished when airport fire department personnel arrived on scene. There was minor paint damage to the to the aft empenage and left horizontal stabilizer. Remainder of damage was contained to the engine and pylon.
As the FAA filed it
DURING A NORMAL ENGINE START-UP, THE AIRCREW WAS ALERTED TO AN ABNORMAL CONDITION BY THE GROUND CREW AND PIC ABORTED THE LEFT ENGINE START. NO FIRE WARNINGS WERE TRIGGERED IN THE COCKPIT DURING THE START SEQUENCE. HOWEVER, GROUND PERSONNEL OBSERVED A FIRE AT THE LEFT ENGINE AND IMMEDIATELY ALERTED THE CREW AND THE AIRPORT FIRE DEPARTMENT. FOLLOWING ABORT OF ENGINE START THERE WERE STILL RESIDUAL FLAMES COMING FROM THE ENGINE NACELLE AND TAILPIPE AREA SO PIC ELECTED TO DISCHARGE THE LEFT ENGINE FIRE EXTINGUISHER AS A PRECAUTIONARY MEASURE. THE FIRE WAS FULLY EXTINGUISHED WHEN AIRPORT FIRE DEPARTMENT PERSONNEL ARRIVED ON SCENE. THERE WAS MINOR PAINT DAMAGE TO THE TO THE AFT EMPENAGE AND LEFT HORIZONTAL STABILIZER. REMAINDER OF DAMAGE WAS CONTAINED TO THE ENGINE AND PYLON.