ENS 41152: Difference between revisions
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| event date = 09/15/2004 09:11 CDT | | event date = 09/15/2004 09:11 CDT | ||
| last update date = 10/27/2004 | | last update date = 10/27/2004 | ||
| title = Invalid Actuation | | title = Invalid Actuation of Containment Isolation Valves | ||
| event text = In accordance with the requirements and guidance of 10 CFR 50.73(a)(1), a telephonic report of an invalid signal affecting containment isolation valves in more than one system is being submitted. This report is being made under 10 CFR 50.73(a)(2)(iv)(A), automatic actuation of a system listed in paragraph (a)(2)(iv)(B), in lieu of a written LER. | | event text = In accordance with the requirements and guidance of 10 CFR 50.73(a)(1), a telephonic report of an invalid signal affecting containment isolation valves in more than one system is being submitted. This report is being made under 10 CFR 50.73(a)(2)(iv)(A), automatic actuation of a system listed in paragraph (a)(2)(iv)(B), in lieu of a written LER. | ||
At 0911 hours, on 09/15/2004, while operating at full power, the plant experienced a loss of power to eight process radiation monitors. The loss of power was caused by the failure of an internal radiation monitor system power supply, PS-100. The affected radiation monitors actuated, where applicable, their associated safety and non-safety related components. The safety related components affected included eight containment isolation valves and the plant's auxiliary building special ventilation system equipment. The containment isolation valves were: | At 0911 hours, on 09/15/2004, while operating at full power, the plant experienced a loss of power to eight process radiation monitors. The loss of power was caused by the failure of an internal radiation monitor system power supply, PS-100. The affected radiation monitors actuated, where applicable, their associated safety and non-safety related components. The safety related components affected included eight containment isolation valves and the plant's auxiliary building special ventilation system equipment. The containment isolation valves were: | ||
Latest revision as of 21:22, 1 March 2018
| Where | |
|---|---|
Kewaunee  Wisconsin (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.73(a)(1), Submit an LER, Invalid Actuation | |
| Time - Person (Reporting Time:+1009.17 h42.049 days <br />6.007 weeks <br />1.382 months <br />) | |
| Opened: | Gary Harrington 15:21 Oct 27, 2004 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Oct 27, 2004 |
| 41152 - NRC Website
| |