The following information was received from the
Kentucky Radiation Health Branch via facsimile:
Kentucky Radiation Health Branch (RHB) was notified by telephone on 10/2/13 by a representative from a generally licensed facility, Momentive Specialty Chemicals, of the fact that the shutter ON-OFF control mechanisms had been stuck in the open position on two level gauges undergoing routine servicing almost four (4) months previously. The two gauges, Thermo TN Technologies model 7063P each with 100 mCi Cs-137 [sources] (S/N S92BO601 and S94K1101) were being routinely serviced by a licensed manufacturer, VEGA Americas, on June 17, 2013 when the shutters were found to be stuck in the open position. The VEGA service representatives returned to the licensee's two days later (6/19/13) and repaired the sticking shutters so they would operate freely.
The VEGA representatives informed the general licensee's representative that a report to RHB was required but the person responsible for the gauges and for making the report was not notified of the problem until almost four months later. When he did learn of the event and the reporting requirement, he reported the event to RHB by telephone on 10/2/13 and followed up with a written report on 10/11/13.
The reporting criteria is defined in 902
KAR 100:050 Section 3(3)(c)5 and 10 CFR 31.5(c)(5).