ENS 49842
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ENS Event | |
|---|---|
15:19 Feb 19, 2014 | |
| Title | Technical Support Center Emergency Ventilation Failure |
| Event Description | On 2/19/2014 at 1019 EST, the Technical Support Center emergency ventilation system failed to operate during TSC Ventilation Operability Check per EP-MA-124-1001-F-02 performed by Limerick Emergency Preparedness staff. Troubleshooting of this equipment deficiency found a blown control power fuse. The fuse failure is attributed to its age. The system has been restored to operational status as of 1430 EST on 2/19/2014.
If an emergency had been declared and TSC activation was required, the TSC would have been staffed and activated unless the TSC became uninhabitable due to ambient temperatures, radiological or other conditions. The Station Emergency Director would assess habitability in accordance with station procedures. TSC relocation of personnel would be directed as required until such time that the TSC emergency ventilation system was returned to service. The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Limerick  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+0.22 h0.00917 days <br />0.00131 weeks <br />3.01356e-4 months <br />) | |
| Opened: | Dan Williamson 15:32 Feb 19, 2014 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Feb 19, 2014 |
| 49842 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 563602023-02-06T11:30:0006 February 2023 11:30:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications and Assessment Capabilities ENS 522702016-09-29T21:00:00029 September 2016 21:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Tsc Ventilation Indication Issue Identified Following Surveillance Testing ENS 521012016-07-18T20:00:00018 July 2016 20:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Offsite Communications Capability ENS 509512015-04-03T14:00:0003 April 2015 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Inoperable Seismic Instrumentation Identified During Historical Review ENS 503762014-08-17T08:00:00017 August 2014 08:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Ventilation System Inoperable ENS 498422014-02-19T15:19:00019 February 2014 15:19:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Ventilation Failure ENS 492752013-08-13T20:00:00013 August 2013 20:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Technical Support Center Ventilation System Power Supply ENS 486532013-01-07T01:00:0007 January 2013 01:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Corrective Maintenance on the Technical Support Center (Tsc) Hvac Power Supply ENS 486292012-12-28T08:30:00028 December 2012 08:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications with All Emergency Planning Zone Sirens ENS 480412012-06-21T12:00:00021 June 2012 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on the Technical Support Center Ventilation ENS 480012012-06-07T13:47:0007 June 2012 13:47:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation System Maintenance ENS 478502012-04-19T11:53:00019 April 2012 11:53:00 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Manual Reactor Scram Following Loss of Recirculation Pumps ENS 477542012-03-19T17:00:00019 March 2012 17:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Out of Service ENS 473892011-10-29T19:15:00029 October 2011 19:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Greater than 25% of Epz Sirens Due to Weather ENS 469732011-06-20T15:56:00020 June 2011 15:56:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Charcoal Failed Testing for Methyl Iodine ENS 464262010-11-18T08:00:00018 November 2010 08:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center Ventilation Corrective Maintenance ENS 463302010-10-14T05:00:00014 October 2010 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Ventilation System Scheduled Maintenance ENS 462902010-09-29T19:25:00029 September 2010 19:25:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Hvac Emergency Damper Failed Quarterly Test ENS 460052010-06-14T07:00:00014 June 2010 07:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance on Tsc Emergency Ventilation System ENS 456932010-02-11T13:00:00011 February 2010 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Emergency Ventilation System Maintenance ENS 451532009-06-24T00:30:00024 June 2009 00:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of the Emergency Response Data System (Erds) ENS 451332009-06-16T04:31:00016 June 2009 04:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System (Erds) Out of Service Due to Computer Problems ENS 442832008-06-11T02:55:00011 June 2008 02:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness 54 of 165 Emergency Sirens Inoperable Due to Power Outage ENS 441692008-04-25T21:30:00025 April 2008 21:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System Outage ENS 439912008-02-17T14:00:00017 February 2008 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Phone Outage ENS 434552007-06-28T13:55:00028 June 2007 13:55:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Greater than 25% of the Epz Sirens for Greater than 1 Hour ENS 427152006-07-19T02:00:00019 July 2006 02:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Capability Due to Adverse Weather ENS 403292003-11-18T09:35:00018 November 2003 09:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Capability ENS 401762003-09-19T08:00:00019 September 2003 08:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Capability Due to Adverse Weather Conditions 2023-02-06T11:30:00 | |
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