As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NW TIRE REPORTED FLAT DURING TAXI OUT FOR TAKEOFF. MAINTENANCE FOUND THE TIRE TUBE SPLIT APPROXIMATELY .2500" ALONG TUBE SIDEWALL. THIS IS A RECURRING PROBLEM WITH MULTIPLE REPEATS, ALWAYS WITH RELATIVELY NEW TIRES AND TUBES. INSTALLATION PROCEDURES REVIEWED MANY TIMES ALWAYS IAW MFG SPECS.