ENS 46922

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v t e 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

ENS 46922 +/-
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
v • d • e

v t e Emergency Notification System
City Public Service with Agreement State
WEEKMONTHYEAR2011-05-31T05:00:00 [Table view]
[ENS list for City Public Service]

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