As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEVEL REDUCTION MODULE (PN 350A32-0300-05, SN M1899) WAS REMOVED AT TSO: 2367.5 FOR METAL CONTAMINATION. UPON TEARDOWN ANALYSIS IT WAS DISCOVERED THAT THE BEARING CAGE FOR BEARING (P/N 704A33-652-036) TSN: 2367.5, WAS BROKEN. SUBSEQUENT DETERIORATION OF BEARING WAS CAUSE FOR METAL CONTAMINATION.