ENS 47047
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ENS Event | |
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21:30 Jul 12, 2011 | |
Title | Inaudible Criticality Warning Siren |
Event Description | {{#Wiki_filter:At approximately 1730 on 7/12/2011, a regularly scheduled test of the inside Criticality Warning System (CWS) covering the Fuel Manufacturing Operation (FMO) was conducted. It was discovered that a CWS warning horn in the ChemMet lab was determined to be inaudible. Compensatory measures were immediately implemented. All other horns of the inside CWS in all other areas were functional and clearly audible. The affected area will remain shut down pending an investigation and implementation of additional corrective actions. The event is being reported within 24�hours pursuant to 10CFR70.50(b)(2) as a safety equipment failure. A CWS warning horn in the ChemMet lab was determined to be inaudible. All other CWS warning horns operating correctly. Investigation results pending. Affected area access was restricted. The faulty CWS horn has been replaced and tested.
The licensee notified Region 2(Coovert) and will notify the state radiation protection agency and New Hanover Emergency Management. }} |
Where | |
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Global Nuclear Fuel - Americas Wilmington, North Carolina (NRC Region 2) | |
License number: | SNM-1097 |
Reporting | |
10 CFR 70.50(b)(2) | |
Time - Person (Reporting Time:+19.7 h0.821 days <br />0.117 weeks <br />0.027 months <br />) | |
Opened: | Phillip Ollis 17:12 Jul 13, 2011 |
NRC Officer: | Joe O'Hara |
Last Updated: | Jul 13, 2011 |
47047 - NRC Website
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Global Nuclear Fuel with 10 CFR 70.50(b)(2) | |
WEEKMONTHYEARENS 497592014-01-22T18:15:00022 January 2014 18:15:00
[Table view]10 CFR 70.50(b)(2) Inoperable Criticality Warning System Local Alarm in Wilmington Field Services Center Building Number 1 ENS 481002012-07-11T21:40:00011 July 2012 21:40:00 10 CFR 70.50(b)(2) Criticality Horns Rendered Inoperable Due to Lightning Strike ENS 478512012-04-18T17:45:00018 April 2012 17:45:00 10 CFR 70.50(b)(2) Local Alarm Horn Was Found to Be Inaudible During Routine Testing ENS 477242012-03-07T18:15:0007 March 2012 18:15:00 10 CFR 70.50(b)(2) Local Alarm Horn Was Found to Be Inaudible During Routine Testing ENS 472202011-08-29T17:00:00029 August 2011 17:00:00 10 CFR 70.50(b)(2) Criticality Accident Alarm System Horn Discovered Inoperable ENS 470612011-07-14T20:55:00014 July 2011 20:55:00 10 CFR 70.50(b)(2) Inoperable Criticality Accident Alarm System Warning Horns ENS 470472011-07-12T21:30:00012 July 2011 21:30:00 10 CFR 70.50(b)(2) Inaudible Criticality Warning Siren ENS 470662011-05-01T16:00:0001 May 2011 16:00:00 10 CFR 70.50(b)(2) Previous Inoperability of Criticality Accident Alarm System Warning Circuit Not Identified ENS 447242008-12-16T11:00:00016 December 2008 11:00:00 10 CFR 70.50(b)(2) Criticality Warning System Disabled ENS 432672007-03-30T11:40:00030 March 2007 11:40:00 10 CFR 70.50(b)(2) Criticality Warning System Alarm Actuation Due to Power Fluctuation ENS 429792006-11-09T10:00:0009 November 2006 10:00:00 10 CFR 70.50(b)(2) Failure of Warning Horns ENS 427472006-08-01T09:00:0001 August 2006 09:00:00 10 CFR 70.50(b)(2) Audible Horn System Malfunction ENS 406332004-04-01T18:00:0001 April 2004 18:00:00 10 CFR 70.50(b)(2) Outdoor Area Criticality Warning System Horn Inoperative 2014-01-22T18:15:00 | |
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