As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORT: LIGHT AIRFRAME VIBRATION DURING CLIMB. VERY NOTICEABLE IN COCKPIT AND AFT CABIN ALONG VERTICAL ACP CHECK OF THE RUDDER TRAILING PLAY REF AMM. FOUND BLUE SYSTEM SERVO TO BE OUT OF LIMITS, APPROX 14MM OF PLAY, MAX ALLOWED IS 8MM. FOUND YELLOW AND GREEN SYSTEM SERVOS WITHIN LIMITS. STARTED SERVO REMOVAL COMPLETED UP TO STEP 4C(1) CONTINUE FROM 4C(2) TO COMPLETION.