As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ADJUSTMENT OF RUDDER TRIM CABLES, ONE TURNBUCKLE WAS FOUND SPLIT DOWN THE SIDES. THE CABLE ENDS WERE NOT BOTTOMED OUT. POSSIBLE DEFECT CAUSED FROM OVERTIGHTENING CABLE AT SOME TIME. SUBMITTER RECOMMENDED CLOSE INSPECTION OF TURNBUCKLES AT REGULAR INSPECTIONS.