What was found
EN ROUTE ECAM MESSAGE FOR NR 1 ENG OIL FILTER CLOG APPEARED, FOLLOWED BY NR 1 ENG OIL PRESSURE RISE INTO THE RED AREA, NR 1 ENG HIGH VIBRATION & SMOKE IN THE CABIN. EXECUTED EMERGENCY DESCENT & LANDED AT MAF. MX REMOVED MAIN OIL FILTER & CHIP DETECTORS AND FOUND THEM CONTAMINATED WITH METALIC DEBRIS, ENG WAS REMOVED. TEAR DOWN OF NR 1 ENGINE REVEALED NR 3 BEARING FRACTURE AS CAUSE OF INCIDENT. NR 3 BEARING OUTER RING WAS FRACTURED AND EXHIBITED SIGNS OF RACEWAY SPALLING WITH OUTSIDE DIAMETER OF OUTER RING DISPLAYING SIGNS OF LOCALIZED FRETTING, FRACTURE INITIATED FROM OUTSIDE DIAMETER FRETTING AREA.