As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 1 MAIN WHEEL ASSEMBLY HAD THE TIRE TREAD SEPARATED FROM THE TIRE AND DAMAGED THE LT MLG DOOR, THE LT AUXILIARY LANDING GEAR DOOR AND THE AFT MAIN LANDING GEAR DOOR CONNECTING ROD. NO DAMAGE TO ANY OTHER STRUCTURE. INVESTIGATION SHOWS THAT THE TREAD SEPARATED ON TAKEOFF WITH NO INDICATION TO THE CREW AND WAS NOT DETECTED UNTIL AFTER LANDING.