ENS 43458
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ENS Event | |
|---|---|
04:14 Jun 29, 2007 | |
| Title | Radiation Monitoring Information to Erds and Spds Will Be Unavailable During Planned Upgrade to the System. |
| Event Description | The computer servers which supply radiation monitoring information to the ERDS (Emergency Response Data System) and SPDS (Safety Parameter Display System) systems will be taken out of service to implement a planned upgrade. The servers are being replaced with upgraded models and are expected to be out of service for approximately 4 to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. The ability of radiation monitors to alarm in the control room will be unavailable while the servers are being replaced. The in plant radiation monitoring skids will be unaffected, as will any automatic actions generated by the monitors. The safety related radiation monitor displays in the control room will also remain available. As a compensatory measure while both servers are unavailable, a dedicated radiation protection technician will monitor the in plant radiation monitor skids to update the control room if anomalous indications are observed. In addition, operations will record the safety related radiation monitor readings every 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
This is an 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> reportable event per 10CFR50.72(b)(3)(xiii), Major Loss of Assessment Capability. The operations of BVPS Unit 2 plant systems is not affected by this planned action. BVPS Unit 1 is not affected by this planned action. The NRC Resident Inspector has been notified.
The Radiation Monitor System Servers have been upgraded and returned to service and the Radiation Monitoring Information to the Emergency Response Data System (ERDS) and Safety Parameter Display System (SPDS) is now available and returned to service. The licensee will notify the NRC Resident Inspector. R1DO (Powell) notified. |
| Where | |
|---|---|
| Beaver Valley Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-3.9 h-0.163 days <br />-0.0232 weeks <br />-0.00534 months <br />) | |
| Opened: | Dave Held 00:20 Jun 29, 2007 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Jun 29, 2007 |
| 43458 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Beaver Valley with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
WEEKMONTHYEARENS 539242019-03-11T12:51:00011 March 2019 12:51:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Communication System Maintenance ENS 510642015-05-11T20:29:00011 May 2015 20:29:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Digital Radiation Monitoring System ENS 508952015-03-14T21:08:00014 March 2015 21:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Digital Radiation Monitoring System Failed ENS 506272014-11-19T14:43:00019 November 2014 14:43:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Eal Required Gaseous Waste Effluent Radiation Monitors Removed from Service for Planned Maintenance ENS 504172014-08-29T13:32:00029 August 2014 13:32:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Digital Radiation Monitoring System Operating Intermittently ENS 497162014-01-11T21:05:00011 January 2014 21:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Digital Radiation Monitoring System Communication Failure ENS 491582013-06-29T16:14:00029 June 2013 16:14:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Digital Radiation Monitoring System Operating Intermittently ENS 475132011-12-05T14:45:0005 December 2011 14:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unavailability of Emergency Response Data System (Erds) for Scheduled Upgrade ENS 462322010-09-07T14:43:0007 September 2010 14:43:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Plant In-Process Computer Oos for Maintenance ENS 456832010-02-06T14:28:0006 February 2010 14:28:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Siren Capability Due to Adverse Weather Conditions ENS 450232009-04-26T19:45:00026 April 2009 19:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Erds and Plant Computer Unavailable During Maintenance on Computer Room Cooling ENS 444872008-09-15T12:00:00015 September 2008 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Sirens Due to Power Outages Caused by High Winds ENS 434582007-06-29T04:14:00029 June 2007 04:14:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Radiation Monitoring Information to Erds and Spds Will Be Unavailable During Planned Upgrade to the System. ENS 430302006-12-03T23:04:0003 December 2006 23:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Non-Functional Safety Parameter Display System ENS 428022006-08-25T14:30:00025 August 2006 14:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System and Safety Parameter Display System Will Be Unavailable 2019-03-11T12:51:00 | |
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