As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE REDUCTION GEARBOX WAS FOUND TO BE GENERATING METAL ANALYSED TO BE M50. THE PRINCIPAL SOURCE OF THE METAL CONTAMINATION WAS FOUND TO BE #15 BEARING WHICH HAD SPALLED BADLY ON THE OUTER RACE WITH SUBSTANTIAL MATERIAL LOSS. THIS APPEARED TO BE THE RESULT OF ELECTRICAL EROSION PITTING, WHICH WAS ALSO FOUND ON #19 BEARING.