ENS 44251
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ENS Event | |
|---|---|
22:05 May 30, 2008 | |
| Title | Planned Power Outage At Primary Emergency Operations Facility (Eof) |
| Event Description | Southern California Edison has scheduled replacement of the backup diesel generator (DG) for the San Onofre Emergency Operations Facility (EOF), for Saturday May 31, 2008. While the new DG is being installed, the EOF will be inoperable. The EOF outage is expected to begin at about 0700 and last approximately 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
The alternate EOF located in Irvine, CA, will be available should SONGS need to respond to an Emergency Event. The Emergency Recall System, which is housed in the EOF, will be out of service while the new DG is being installed. Should recall of the Emergency Response Organization (ERO) be necessary during the EOF outage, SCE will utilize alternate methods (contained in existing site procedures) for activating the ERO. This planned EOF outage is being reported in accordance with 10 CFR 50.72(b)(3)(xiii). At the time of this report, Unit 2 and Unit 3 were operating at about 99 percent and 98 percent power, respectively. The licensee notified the NRC Resident Inspector.
The Emergency Operations Facility was returned to service on May 31, 2008 at 1810 PDT. SCE is continuing to troubleshoot problems identified with the transfer switch associated with the new backup diesel generator, and will inform the NRC Resident Inspectors when the backup DG is available. The licensee will notify the NRC Resident Inspector. |
| Where | |
|---|---|
San Onofre  California (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-4 h-0.167 days <br />-0.0238 weeks <br />-0.00548 months <br />) | |
| Opened: | Mike Mcbrearty 18:05 May 30, 2008 |
| NRC Officer: | Pete Snyder |
| Last Updated: | May 31, 2008 |
| 44251 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (99 %) |
| After | Power Operation (99 %) |
Unit 3 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (98 %) |
| After | Power Operation (98 %) |
WEEKMONTHYEARENS 475502011-12-23T13:00:00023 December 2011 13:00:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System Out of Service ENS 467112011-03-30T14:00:00030 March 2011 14:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Sirens Out of Service Due to Inadvertent Securing of Power ENS 465032010-12-22T03:32:00022 December 2010 03:32:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Access to Primary Emergency Operations Facility Not Possible Due to Road Flooding ENS 457142010-02-21T16:00:00021 February 2010 16:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Power Outage at Primary Emergency Operations Facility (Eof) ENS 456342010-01-19T03:50:00019 January 2010 03:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operations Facility Inaccessible Due to Road Flooding ENS 454622009-10-23T19:05:00023 October 2009 19:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Preparedness Capabilities ENS 452052009-07-13T18:00:00013 July 2009 18:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Temporary Loss of Power to Ten Emergency Notification Sirens ENS 443552008-07-18T15:00:00018 July 2008 15:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Operations Facility Inoperable for Maintenance Work ENS 442512008-05-30T22:05:00030 May 2008 22:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Power Outage at Primary Emergency Operations Facility (Eof) ENS 438372007-12-11T19:05:00011 December 2007 19:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Major Loss of Communications Capability ENS 419582005-08-29T17:45:00029 August 2005 17:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System and Emergency Response Data System Planned Upgrade Outage ENS 414772005-03-09T08:00:0009 March 2005 08:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Loss of the Emergency Response Data System ENS 413202005-01-10T03:45:00010 January 2005 03:45:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness San Onofre Emergency Operations (Eof) Inaccessible Due to Road Flooding 2011-03-30T14:00:00 | |
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