ENS Event | |
|---|---|
05:00 May 31, 2011 | |
| Title | Agreement State Report - Fixed Gauge Shutter Failure |
| Event Description | The following information was received via e-mail from the Texas Department of State Health Services concerning an event that occurred at the Calaveras Power Station in San Antonio, Texas:
On June 3, 2011, at 1330 CDT, the agency [Texas Department of State Health] received a phone call from the licensee's Radiation Safety Officer reporting a fixed nuclear gauge failure. He stated that on Tuesday, May 31, 2011, the licensee's employees had closed the gauge shutter while they were calibrating the detector. When one of the employees attempted to re-open the shutter, the employee said he felt something 'sort of give' and the shutter would not open. The handle was loose. The RSO was called and he came to the location of the gauge. He checked the handle and it was loose, so rather than try to open the gauge he left it closed. He verified that the shutter was completely closed by performing a survey with a portable survey meter. The equipment the gauge was mounted to was not necessary to be in operation so it was shut down until the gauge could be repaired. On Friday, June 3, 2011, ThermoFisher Scientific (TFS) service came on-site and repaired the handle. The RSO stated that the TFS said the pin at the bottom of the handle had corroded and broke. The pin that holds the handle to the mechanism that opens/closes the shutter is inside the gauge housing. Gauge is a K-Ray Model, 7062BP, serial number 27118E, which contains a 50 millicurie cesium -137 source. An investigation by the licensee into the cause and potential corrective actions in underway. Texas Report I-8860 |
| Where | |
|---|---|
| City Public Service San Antonio, Texas (NRC Region 4) | |
| License number: | 02876 |
| Organization: | Texas Department Of Health |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+83.73 h3.489 days <br />0.498 weeks <br />0.115 months <br />) | |
| Opened: | Karen Blanchard 16:44 Jun 3, 2011 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Jun 3, 2011 |
| 46922 - NRC Website | |
City Public Service with Agreement State | |
WEEKMONTHYEARENS 469222011-05-31T05:00:00031 May 2011 05:00:00
[Table view]Agreement State Agreement State Report - Fixed Gauge Shutter Failure 2011-05-31T05:00:00 | |