The following information was received from the Commonwealth of Kentucky:
On 8/15/14, Gallatin Steel discovered a problem with the source holder (serial number 6596) on a Berthold MLT300 fixed gauge. The gauging device contained 27 mCi of Co-60, serial# 165-02-13. The source holder was closed and locked, removed from service, placed in storage, and service was scheduled with Berthold service group. On 8/20/14 Radiametrics Technologies shutter-checked, surveyed and leak tested the device. The shutter was found to be stuck in the closed position which was caused by the lifting mechanism. Excessive wear on the lifting mechanism caused it to indent the edge of the shutter and the top plate causing an inoperable condition. The shutter was repaired and rechecked for proper operation and no problems were found. On 2/13/14 Gallatin Steel sent the KY RHB [Kentucky Radiological Health Branch] notification of the event. Corrective actions include repair of the gauge, and service/inspection of the lifting device every 6 months. Gallatin Steel informed all personnel involved, including Berthold Service Group, of the incident and the notification requirements to the KY RHB.
Kentucky Event ID: KY150001