ENS 49759
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ENS Event | |
|---|---|
18:15 Jan 22, 2014 | |
| Title | Inoperable Criticality Warning System Local Alarm in Wilmington Field Services Center Building Number 1 |
| Event Description | On 1/22/14 at 1:15 PM [EST], it was discovered during routine testing on an outdoor Criticality Warning System (CWS) Data Acquisition Module (DAM #21), that the module had inadequate voltage to properly sound a portion of the local alarm horns in the Wilmington Field Services Center (WFSC) building #1. While another module provides overlapping detector coverage, it does not provide overlapping horn audibility in the affected areas. The cause of the event is believed to be related to a battery component failure.
Personnel were immediately removed from the affected areas and repairs initiated to restore normal operation of the system. The module was repaired and the system returned to normal on 1/22/14 at approximately 3:00 PM. The affected outdoor CWS horns were retested to ensure proper system operability. There are no active fissile material operations at the WFSC, thus no unsafe condition existed. Longer term preventive actions are being evaluated. This event is being reported pursuant to the requirements of 10CFR70.50 (b)(2). The licensee will be notifying NRC NMSS Licensing Project Manager, NRC Region II Inspection Coordinator, State of North Carolina Radiation Protection Branch, and the New Hanover Emergency Response Branch. |
| Where | |
|---|---|
| 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:+17.25 h0.719 days <br />0.103 weeks <br />0.0236 months <br />) | |
| Opened: | Scott Murray 11:30 Jan 23, 2014 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Jan 23, 2014 |
| 49759 - 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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