As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXCESSIVE VIBRATION IN CONTROL COLUMN FELT AT HIGH SPEEDS AND LOWER ALTITUDE. MAINTENANCE FOUND EXCESSIVE TRIM TAB PLAY DUE TO ACTUATORS REQUIRING LUBRICATION. GREASED ACTUATOR'S. SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.