ENS 43228
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ENS Event | |
|---|---|
05:30 Mar 10, 2007 | |
| Title | Planned Maintenance for Unit 2 Spds and Erds System |
| Event Description | At 0030 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, on 03/10/2007, the Unit 2 SPDS and ERDS system will be removed from service for planned maintenance outage on the power supply. The duration of work is expected to be approximately 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. (Scheduled for completion at 1230 hours0.0142 days <br />0.342 hours <br />0.00203 weeks <br />4.68015e-4 months <br /> on 03/10/2007). During this time, control room hardwire indications will be available.
Since the Unit 2 SPDS computer system will be unavailable for greater than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, this is considered a Loss of Emergency Assessment Capability and reportable under 10CFR50.72(b)(3)(xiii). The licensee has redundant indication in the control room and will notify the Operations Center when the planned maintenance work is complete. The licensee notified the NRC Resident Inspector.
This is a followup courtesy notification to EN # 43228. The Unit 2 SPDS and ERDS systems, as noted (above), have been restored to normal as of 19:50 on 03/10/2007. NRC Resident Inspector was notified of this update by the licensee. NRC R1DO (Neil Perry) notified. |
| Where | |
|---|---|
Susquehanna  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-5.27 h-0.22 days <br />-0.0314 weeks <br />-0.00722 months <br />) | |
| Opened: | Rich Klinefelter 00:14 Mar 10, 2007 |
| NRC Officer: | Joe O'Hara |
| Last Updated: | Mar 10, 2007 |
| 43228 - NRC Website
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WEEKMONTHYEARENS 497532014-01-21T18:40:00021 January 2014 18:40:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Vent Stack Radiation Monitors Out of Service ENS 482112012-08-20T15:06:00020 August 2012 15:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Data System ENS 480202012-06-13T04:00:00013 June 2012 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameters Display System Out of Service ENS 478202012-04-11T01:48:00011 April 2012 01:48:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds and Erds Removed from Service Due to Planned Maintenance ENS 473722011-10-24T21:15:00024 October 2011 21:15:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operation Facility Out of Service Due to Planned Maintenance Activity ENS 453362009-09-09T13:30:0009 September 2009 13:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Sirens Out of Service ENS 452802009-08-20T20:43:00020 August 2009 20:43:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Plant Integrated Computer System Resulting in Loss of Erds and Spds ENS 452702009-08-17T16:10:00017 August 2009 16:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Response Data System and Safety Parameter Display System Due to Computer Problems ENS 445132008-09-23T11:30:00023 September 2008 11:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operating Facility Unavailable ENS 443422008-07-10T19:38:00010 July 2008 19:38:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capabilities Due to Plant Computer Failure ENS 440872008-03-22T14:35:00022 March 2008 14:35:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds/Erds Computer System Greater than 8 Hours ENS 440702008-03-17T15:50:00017 March 2008 15:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System (Spds) and Emergency Response Data System (Erds) Unavailable Due to Planned Maintenance ENS 432392007-03-15T03:00:00015 March 2007 03:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Outage of Spds and Erds ENS 432282007-03-10T05:30:00010 March 2007 05:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Maintenance for Unit 2 Spds and Erds System ENS 424232006-03-15T10:57:00015 March 2006 10:57:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Assessment Capability - Safety Parameter Display System ENS 422902006-01-27T13:00:00027 January 2006 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Unit 2 Emergency Response Data System (Erds) Modem Failed ENS 421832005-12-02T05:49:0002 December 2005 05:49:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System (Spds) Failure on Unit Two ENS 420812005-10-26T14:20:00026 October 2005 14:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power at the Emergency Operations Facility ENS 416402005-04-26T11:31:00026 April 2005 11:31:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds (Safety Parameter Display System) Is Down for Planned Maintenance ENS 416312005-04-25T02:30:00025 April 2005 02:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds (Safety Parameter Display System) Is Down for Planned Maintenance ENS 410292004-09-09T08:24:0009 September 2004 08:24:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability ENS 409562004-08-15T00:45:00015 August 2004 00:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Safety Parameter Display System ENS 409482004-08-13T12:00:00013 August 2004 12:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Safety Parameter Display System (Spds) for Greater than 8 Hours ENS 405732004-03-07T03:10:0007 March 2004 03:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Spds Will Be De-Energized for More than 8 Hours Due to Refueling Outage Activities ENS 401822003-09-19T20:00:00019 September 2003 20:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Sirens Due to Storm 2014-01-21T18:40:00 | |
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