The licensee was shipping a 16 Curie MO-99/TC-99 Generator inside a 49 lb
depleted uranium cask with an activity level of 8.09 millicuries of
U-238 to a customer in Port Huron,
Michigan. Shipping documents indicate that the ground courier (Associated Couriers, Inc.) had taken custody of the shipment from the air courier (AirNet) and transported it to its warehouse near Detroit,
Michigan. When the ground courier went to make delivery of the device to the customer, the shipment could not be located. The licensee has contacted both the ground courier and air courier as well as the customers along the delivery route in an attempt to find the device.
THIS MATERIAL EVENT CONTAINS A "CATEGORY 3" LEVEL OF RADIOACTIVE MATERIAL
Category 3 sources, if not safely managed or securely protected, could cause permanent injury to a person who handled them, or were otherwise in contact with them, for some hours. It could possibly - although it is unlikely - be fatal to be close to this amount of unshielded radioactive material for a period of days to weeks. These sources are typically used in practices such as fixed industrial
gauges involving high activity sources (for example: level
gauges, dredger
gauges, conveyor
gauges and spinning pipe
gauges) and well logging. For additional information go to
http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf