As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEARING INNER RACE SHOULDER WORN ON ONE SIDE DUE TO LOST TORQUE OF NUT P/N MS14145L5 WHICH WAS CAUSED BY THE LACK OF THREADS ON THIS NUT OR WASHER P/N AN960-516 NOT CONTACTING THE PITCH HORN FULLY AS NOTED IN ASB 412-98-92. PART ALREADY SENT.