What was found
PILOT REPORTED, DURING DECENT RT ENGINE FLAMED OUT, ATC NOTIFIED, RESTART OF RT ENGINE PERFORMED, UNEVENTFUL LANDING. DURING TAXI, GROUND CONTROL REPORTED FLAMES SHOOTING OUT OF TAIL PIPE. RT ENGINE, WILL UPDATE THIS SDR AFTER MAINTENANCE. PRECAUTIONARY ENGINE CHANGE PERFORMED. AIRCRAFT RETURNED TO SERVICE. ENGINE SHOP FOUND SECONDARY AND PRIMARY ENGINE FUEL NOZZLES WORKING AT SAME TIME, O/H FUEL NOZZLES.