As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEC 18 I WAS NOTIFIED BY THE OWNER THAT HE HAD EXPERIENCED AND FLAT NOSE LANDING GEAR TIRE AFTER LANDING. HE REPORTED TO ME THE TIRE WAS FLAT WHILE WHEN WE WAS TAXIING HE AIRCRAFT BACK TO THE HANGAR. I REMOVED THE NOSE LANDING GEAR WHEEL ASSEMBLY AND INSPECTED THE TIRE AND FOUND NO DEFECT. I INSPECTED THE TUBE AND FOUND A SLIGHT PIN HOLE ON THE OUTSIDE DIAMETER OF THE TUBE.