As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING THE FLIGHT CREW`S WALK AROUND, THE PILOT NOTICED A SERIES OF CRACKS GOING ALL AROUND THE TIRES CLOSE TO THE RIM (ONLY ON THE INSIDE WALLS OF BOTH TIRES). BOTH WHEELS WERE CHANGED. AIRCRAFT BACK TO SERVICE (TC# 20190802004)