As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT MAIN TIRE FLAT AT RUN UP AREA. REMOVED WHEEL. DISASSEMBLED AND FOUND BUTYL TYPE G15-G00-6 TUBE WITH HALF INCH LONG SLIT IN SIDEWALL. INSPECTED TIRE AND FOUND NO HOLES OR SLITS IN SIDEWALL AND NO ABNORMALITY ON INSIDE OF TIRE. THIS IS THE THIRD BUTYL TYPE TUBE TO FAIL ON THIS ACFT IN 8 MONTHS. BUTYL TUBES FAIL FAR MORE OFTEN THAN NATURAL RUBBER TYPES.