As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A ROUTINE PHASE INSPECTION, A BLACK OXIDE AROUND THE FASTENERS WAS DISCOVERED ON THE RT HORN OF THE RT ELEVATOR TORQUE TUBE INDICATING WEAR. UPON FURTHER INSPECTION MOVEMENT BETWEEN THE HORN AND THE ELEVATOR TORQUE TUBE WAS APPARENT. THE MANUFACTURE WAS CONTACTED AND THEY INDICATED THIS DEFECT AFFECTED THE AIRWORTHINESS OF THE AIRCRAFT. PART WAS REMOVED FOR FURTHER INSPECTION AND THEN REPLACEMENT.