As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE AIRCRFAT EXPERIANCED AIRFRAM VIBRATION AT 320 KIAS CORRECTIVE ACTION -PERFORMED TSM 27-20-00-810 FOUND BLUE SYSTEM SERVO FREE PLAY CHECK OUT OF LIMITS, ALSO REPLACED YELLOW AND GREEN SYSTEM ACTUATORS IAW A320 AMM 24-24-00 NO FURTHER DEFECTS NOTED