ENS Event | |
|---|---|
05:00 Oct 4, 2011 | |
| Title | Agreement State Report - Stuck Open Shutter on Process Gauge |
| Event Description | The following report was received from the Kansas Department of Health and Environment via facsimile:
The licensee attempted to close the shutter [on a process gauge] in preparation for a job. The shutter would not close. There were no personnel exposures [associated with this event]. Because of the location [of the gauge], there are no likely exposures due to this failure. The source is located approximately 12 feet above the ground on a tank. Access is by portable ladder. Operations and maintenance personnel were notified. The shutter in question is on an Ohmart/VEGA model SHF1 B-45 source holder (S/N 7294CN) containing 100 milli-Curies of Cs-137 in a sealed source. The manufacturer, [Ohmart] VEGA, has been contacted and is working to schedule their service technician to [make repairs]. Sealed Source and Device Registry OH-0522-D-01 02-B states 'Commonly reported device failures associated with this device series includes stuck shutters, shutter handles breaking off, and broken screws. A review of these failures indicate common root cause issues are associated with: operating the devices outside the normal conditions of use; failure to seek appropriate device service when shutters start becoming difficult to operate; shutter binding due to environmental contaminant intrusion into the shutter; and, forcing operation of shutter instead of seeking corrective action. The most commonly involved series is the SH-F2 which is the model typically installed in harsh environmental conditions'. Kansas Report Number: KS110011 |
| Where | |
|---|---|
| Frontier El Dorado Refining Company El Dorado, Kansas (NRC Region 4) | |
| License number: | 22-B145-01 |
| Organization: | Kansas Dept Of Health & Environment |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+55.08 h2.295 days <br />0.328 weeks <br />0.0754 months <br />) | |
| Opened: | James Harris 12:05 Oct 6, 2011 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Oct 6, 2011 |
| 47324 - NRC Website | |
Frontier El Dorado Refining Company with Agreement State | |
WEEKMONTHYEARENS 473242011-10-04T05:00:0004 October 2011 05:00:00
[Table view]Agreement State Agreement State Report - Stuck Open Shutter on Process Gauge 2011-10-04T05:00:00 | |