As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CLIMB 310KTS STRONG VERTICAL VIBRATION FELT IN COCKPIT AND AFT GALLEY, WENT AWAY AT 300. ACCOMPLISHED ELEVATOR SERVO PLAY CHECK REF MM 27-34-00-200-001. EDGE PLAY WITHIN LIMITS LEFT BLUE 5.25MM LEFT GREEN 5.12MM RIGHT BLUE 4.20MM RIGHT YELLOW 5.60MM INSP NOSE GEAR MLG SEALS FOR CONDITION AND WING BODY SEALS, AND FLAPS NO DEFECTS NOTED. NO CURRENT HISTORY, OK FOR SERVICE.