As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON WHEEL DISASSEMBLY FOR A TIRE CHANGE, VISUALLY FOUND THE WHEEL FLANGE CRACKED ABOUT 3" FROM THE THIN FLANGE LIP INTO THE BEAD SEAT RADIUS. THE WHEEL WOULD HAVE FAILED IF LEFT IN SERVICE ANY LONGER. SENT WHEEL OUT FOR FULL O/H AND FLANGE REPLACEMENT.