As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT , THE RIGHT ENGINE SHUTDOWN BY ITSELF AFTER BEING STABILIZED AT IDLE. ANOTHER AIRCRAFT REPORTED SMALL TAIL PIPE FIRE AFTER THE ENGINE HAD SHUT DOWN. REPLACED THE RIGHT FCU, INSPECTED INLET AND EXHAUST. SYSTEM OPERATION IS NORMAL. AS FOLLOW UP, FOUND THE BURNER PRESSURE FLEX LINE DAMAGED NEAR THE EEC. REMOVED AND REPLACED THE BURNER PRESSURE FLEX LINE, CHECKS GOOD.