As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER ONE ENGINE HAD A TAIL PIPE FIRE DURING START. FIRE BOTTLES WERE USED AND PASSENGERS WERE EVACUATED. ENGINE START ABORTED AND GROUND CREW ADVISED OF THE ENGINE FIRE. *S/D* REPLACED ENGINE. THE FUEL NOZZLES WERE SENT TO AN OUTSIDE VENDOR FOR TESTING. SEVEN OF THE TWENTY NOZZLES HAD MINOR CHECK VALVE LEAKAGE. THIS CONDITION CONTRIBUTED TO THE TAIL PIPE FIRE.