As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TIRE LEFT MAIN WAS SEEN DEFLATING WHILE PARKED ON THE RAMP. REMOVED TIRE AND INSPECTED TUBE AND TIRE. TIRE CASING WAS FOUND TO BE IN GOOD CONDITION AND SMOOTH INSIDE. TUBE WAS FOUND TO HAVE A SMALL RUPTURE, WITH NO EVIDENCE OF PENETRATION OR DAMAGE ON THE OUTSIDE OF THE TIRE.