What was found
AIR TURNBACK, AIRFRAME VIBRATION DURING CLIMB. VIBRATION GREATER AT HIGHER SPEEDS. REMOVED AND REPLACED RT ELEVATOR OUTBOARD TAB HINGE BUSHINGS AND LT ELEVATOR INBOARD TAB HINGE BUSHINGS PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK, AIRFRAME VIBRATION DURING CLIMB. VIBRATION GREATER AT HIGHER SPEEDS. REMOVED AND REPLACED RT ELEVATOR OUTBOARD TAB HINGE BUSHINGS AND LT ELEVATOR INBOARD TAB HINGE BUSHINGS PER MM.