As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT FROM CVG HAD AIRFRAME VIBRATION, RETURNED CVG. FOUND A 4 FOOT SECTION OF LEFT WING NR 5 L/E SLAT TRAILING EDGE WEDGE HAD SEPARATED FROM THE SLAT PANEL. THE SLAT WAS REMOVED AND ROUTED TO SHOP FOR REPAIRS, NEW SLAT PANEL WAS INSTALLED FOR RETURN TO SERVICE.