As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(B-18707), DURING ACFT TAXIING OUT, STAFF FROM OTHER ORGANIZATION REPORTED THAT "ABNORMAL BANG SOUND WAS HEARD". DOWN LOAD CMC NO ACTIVE FAULTS FOR EXISTING FAULT & PRESENT LEG FAULT. CREW INFORMED ACFT NORMAL BY SATCOM. AFTER ACFT ARRIVED, GROUND CHECK FOUND NR 13 TIRE TREAD LOSS AND BURST. REPLACED NR 13 & 14 MAIN WHEEL ASSY. PERFORMED TIRE TREAD LOSS OR TIRE BURST CONDITIONAL INSP NORMAL.