As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRFRAME TAIL VIBRATION DURING CLIMB. GROSS WT LASTED UNTIL FL 300. MAINT TEXT: CREW REPORTS THERE WAS NO YAW DURING VIBRATION. NO VISIBLE ANOMALY OBSERVED ON HORIZONTAL STAB. ACCOMPLISHED MT-005 REV G VIBRATION TROUBESHOOTING. ELEVATOR SERVO CONTROL FREE PLAY CHECK FAILED ON THE RT OTBD SERVO CONTROL EYE END. REPLACED SERVO CONTROL EYE END IAW MT.