As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRANSMISSION RECEIVED FOR METAL IN OIL. INSPECTION REVEALED NOTHING ABNORMAL EXCEPT LT INPUT PINION AND 4638-302-024 BEARING HAD A FEW SLIGHT DENTS OR MARKS IN ROLLERS AND ROLLER PATH ON PINION. BEARING WAS CUT APART AND THE OUTER RACE WAS FOUND VERY SPALLED. REPAIRED TRANSMISSION. REPLACED BEARING.