As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON TEAR-DOWN OF TRANSMISSION FOR INSPECTION, FOUND SCREEN ASSY FULL ON PLASTIC OR NYLON PIECES. INSPECTED PLANETARY ASSY FOUND 3 EACH GEAR ASSYS WITH NO RETAINERS REMAINING, ONE EACH RETAINER WAS IN PLACE. ONCE REMOVED, IT FELL APART. UPGRADE RETAINERS TO NEW P/N 214-040-515-001.