As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE TIRE WAS DISCOVERED FLAT DURING CHECKS PRIOR TO START. THE TIRE AND TUBE WERE REMOVED FROM THE WHEEL. THERE WAS NO NOTICABLE DEFECT ON THE TUBE. THE VALVE STEM AND CAP WERE STILL ATTACHED TO THE WHEEL. THE TIRE AND TUBE WAS DISCARDED BY THE REPAIR SHOP BEFORE THE QA COULD INSPECT IT. THE TIRE AND TUBE HAD BEEN REPLACED WITH NEW PRODUCTS 75 HOURS PRIOR TO THIS.