What was found
(CAN) ON DESCENT PASSING APPROX 7,500FT, NR 2 ENG FADEC CAUTION LIGHT ILLUMINATED FOLLOWED BY NR 2 FADEC WARNING LIGHT AND NR 2 ENG OIL PRESSURE LIGHT. WE CONDUCTED THE ENGINE SHUTDOWN DRILL AND COMPLETED THE QRH. THE LANDING WAS UNEVENTFUL. REPORT FROM LINE MX: INVESTIGATION INTERROGATION OF THE ACFT`S CENTRAL DIAGNOSTIC SYS (CDS), INDICATED NUMEROUS FAULT CODES ASSOCIATED WITH THE NR 2 ENGINE FADEC. FOLLOWING A CLEARING ACTION OF THE CDS THE NR 2 ENGINE FADEC. CAUTION LIGHT REMAINED ILLUMINATED WITH A NR OF THE FAULT CODES STILL PRESENT IN THE CDS. THE NR 2 ENGINE FADEC UNIT WAS REPLACED IAW THE ACFT`S MM AND FOLLOWING THIS REPLACEMENT THE "CAUTION LIGHT" WAS EXTINGUISHED AND ALL FAULT CODES REMOVED. ENGINE TRIM AND GROUND RUNS CARRIED OUT IAW THE ACFT`S MM WITH ALL RESULTS SATISFACTORY. ACFT SERVICEABLE TO RETURN TO SERVICE.