As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG AIRFRAME VIBRATION. CREW REPORTED THAT VIBRATION DECREASED SUBSTANTIALLY WITH THE GREEN HYDS TURNED OFF AND CAME BACK WITH THE GREEN SYSTEM REACTIVATED. FOUND WORN BEARINGS AT FITTINGS E BOTH C'S AND B AT VERTICAL STABILIZER ATTACH FITTING. SHOULD READ UPPER 'B' BEARING FITTING WORN PER IPC ALONG WITH E AND BOTH C'S. BASED ON CREW INPUT REPLACED GREEN SYSTEM ELEVATOR SERVO CONTROL. OP CHECKED AND LEAK CHECKED GOOD.