As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING 100HR INSPECTION, METAL FOUND ON ALL 3 M/R TRANSMISSION MAGNETIC CHIP DETECTORS. NOT ENOUGH METAL FOR A COCKPIT CHIP INDICATION. METAL ALSO FOUND IN M/R GEARBOX OIL FILTER. TRANSMISSION ASSY AND MAST ASSY REMOVED FOR INSPECTION, M/R MAST BEARING INNER RACE FOUND SPALLING. BEARING REPLACED WITH NEW. TRANSMISSION AND TRANSMISSION OIL COOLER FLUSHED TO REMOVE METAL CONTAMINATION.