The following was received via email:
The licensee's radiation safety officer called the Agency [Illinois Emergency Management Agency] to advise that on 9/16/14, an Ohmart Vega, m/n SH-F1-45 fixed gauge containing 15 milliCi of Cs-137 (as of April 2002) had a shutter which could not be closed. They became aware of the situation during the performance of routine 6 month operability checks. The manufacturer was immediately contacted to schedule an evaluation in the coming weeks and for advice. The licensee was advised to lubricate the shutter pinion and allow it to sit overnight before attempting to close the shutter again the next day. The licensee intends to have the manufacturer's field engineer come on site to inspect the device.
The gauge is located on a vessel which is still in active use for sulfur production and is exposed to ambient weather conditions. The gauge is located approximately 15 feet overhead on a platform which is not a routine work location for day to day operations. A lock out/tag out procedure is actively in use at the site should any work on/in the vessel be necessary before repairs can be affected. Notifications to the acting RSO are part of that procedure. The licensee is aware of the 30 [day] written reporting requirement.
This is the second time that the shutter has stuck open recently.
Illinois Event #: IL14019