As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LOCK PIN NR 10 EITHER NOT PROPERLY INSTALLED OR CAME LOOSE ALLOWING NUT NR 9 TO VIBRATE LOOSE FROM LOWER THREAD PORTION OF COLLAR NR 8, THIS ALLOWED THE ENTIRE FRICTION ASSY TO BE LIFTED BY HAND. THIS COULD EASILY THEN CAUSE BINDING OR LIMIT CYCLIC MOVEMENT. COLLAR NR 8 IS DRILLED TO ACCEPT THE LOCK RING. ALL PARTS EXAMINED AND REINSTALLED TO ENSURE PROPER LOCKING EFFECTIVENESS.