As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SINCE THE BEGINNING OF THE YEAR, 2013, WE HAVE HAD 2 ACFT NOSE TIRES LOSE AIR WHILE TAXIING. A RECENT SHIPMENT OF NOSE TIRE TUBES WERE FOUND TO HAVE SIGNIFICANT MANUFACTURING DEFECTS IN THE ENTIRE ORDER, 7 EA. MAINTENANCE DID NOT FEEL COMFORTABLE INSTALLING THEM ON THE ACFT.