What was found
DURING DESCENT THROUGH FL 250, THE NR 2 ENGINE INDICATIONS ROLLED BACK AND ECAM INDICATED THE NR 2 ENGINE FAILED. NOTHING WAS NOTED AS THE CAUSE FOR THIS, GOOD OIL QUANTITY, AND GOOD FUEL INDICATIONS. AFTER GOING TO CONTINUOUS IGNITION RELIGHT, THE ENGINE INDICATIONS WENT BACK TO NORMAL AND OPERATION WAS NORMAL THROUGHOUT THE FLIGHT. TROUBLESHOT IAW FIM 72-00-40, FIG 117A, PREFORMED FADEC GROUND TEST IAW TSM 73-21-40, NO FAULTS SHOWN. REMOVED THE NR 2 ENGINE FUEL METERING UNIT IAW AMM 73-23-00-04. INSTALLED NEW PACKINGS AND RETAINERS ON FUEL DISTRIBUTION VALVE SUPPLY TUBE ASSY. NEW FMU INSTALLED IAW 73-23-00-04. ALL LEAK CHECKS AND ENGINE RUNS CHECKED OK.