As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS TAXIING OUT TO THE RUNWAY FOR TAKE OFF. THE LT MAIN WHEEL TIRE WENT FLAT. AIRCRAFT WAS TOWED TO MAINTENANCE AND THE INNER WHEEL HALF RIM WAS FOUND CRACKED AT THE RIM RADIUS FOR APPROX. 5 INCHES ALONG THE RIM. THE TIRE WAS ALSO DAMAGED AND UNSERVICEABLE FOR FURTHER USE. NO OTHER DAMAGE FOUND THROUGHOUT THE LANDING GEAR.