As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFT WAS FOUND WITH RT MAIN TIRE COMPLETELY FLAT DURING THE WALKAROUND. ACFT HAD ALREADY HAD 2 FLIGHTS THAT DAY. WHEEL REMOVED AND FOUND TUBE TO HAVE A .5" SPLIT IN IT. TUBE HAD BEEN IN SERVICE ONLY SINCE APRIL 2012. WE HAD BEEN HAVING A LOT OF TUBE FAILURES IN THE PAST 2 YEARS SO WE SWITCHED TO TUBES.