What was found
DURING ROUTINE INSPECTION OF OIL FILTER, BRONZE PARTICLES FOUND. FURTHER INVESTIGATION FOUND LARGER PIECES IN HS GEARBOX STRAINER AND METAL ON CHIP DETECTOR. ENGINE REMOVED FOR TEAR DOWN, AND REPAIR. TEAR DOWN FOUND BEARING CAGE MISSING 7 OF 10 CAGE POCKETS AND ROLLERS SHOW EVIDENCE OF HEAVY END LOADING ON REAR SHOULDER OF THE INNER RACE TRACK. CAUSE OF FAILURE HAS NOT BEEN DETERMINED. REF: 1-2011.