As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(REF: PA05002) VIBRATION NOTED AT ROTATION SPEED. FLIGHT CREW RETURNED TO POINT OF ORIGIN AND LANDED UNEVENTFULLY. NR 4 TIRE TREAD SEPARATED. THE NR 4 MAIN WHEEL AND TIRE ASSY WERE CHANGED IAW MM. THE AC WAS THEN FERRIED TO A MAINTENANCE BASE TO REPAIR THE DAMAGE FROM THE TIRE FAILURE. (K)