As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - FLT 4727 - RIGHT ENGINE HAD FLAMES COMING FROM EXHAUST ON TAXI. CREW SHUT DOWN ENGINE AND SHOT BOTH FIRE BOTTLES FOR PRECAUTION. MAINTENANCE REPLACED FIRE BOTTLES AND REPLACED RIGHT FAULTY FUEL BYPASS VALVE. GROUND CHECK GOOD. (M)