As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE TROUBLESHOOTING AN AIRFRAME VIBRATION ISSUE, MAINTENANCE FOUND SIGNS OF WEAR AND VISIBLE VERTICAL MOVEMENT WAS OBSERVED IN THE RIGHT ELEVATOR NR 3 HINGE ARM FITTING. REPLACED THE HINGE ARM FITTING IAW AMM 55-16-42. AIRCRAFT WAS GROUNDED.