As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LT INBOARD CONTROL HORN ATTACHMENT RIVETS FOUND WORKING ON ELEVATOR TORQUE TUBE ASSY. LT ELEVATOR CONTROL HORN EXHIBITED ROTATIONAL MOVEMENT ON TORQUE TUBE. UPON REMOVAL OF HORN FROM TORQUE TUBE, FOUND WEAR WAS LIMITED TO RIVETS. REMOVED AND REPLACED TORQUE TUBE ASSY ATTACHMENT RIVETS.