As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF EXPERIENCED VIBRATION THAT WAS PRESENT IN BOTH YOKE & PEDALS. SEEMED TO INTENSIFY WITH INCREASED POWER & PITCH. CONTINUED THRU FL 230 BEFORE DECIDING TO DIVERT. DID NOT SEEM TO BE AS PRONOUNCED IN DESCENT. REMOVED RUDDER HORN ASSEMBLY. INSPECTED & FOUND EXCESSIVE PLAY. REPLACED RUDDER HORN ASSEMBLY WITH NEW ASSEMBLY & NEW NUTS, BOLTS, WASHERS & DOTTER PIN. ALL WORK WITH CURRENT MM AMM 27-21-01. NO DEFECTS NOTED AT THIS TIME.