ENS 40345
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ENS Event | |
|---|---|
23:00 Nov 20, 2003 | |
| Title | Loss of Spds for Greater than 8 Hours |
| Event Description | During the performance of the control room logs CKL ZL-003 the updating of the SPDS [Safety Parameter Display System] program on the Nuclear Plant Information System (NPIS) computer system was noted to have not changed state. With the recent restoration of the condenser off gas monitor GE RE-092 the computer log had not updated and indicated that the computer was not updating. A review of the computer services backlogs indicates the program has not updated since 11/14/2003 @ 10:29 [CST].
This condition is being reported as a Loss of Emergency Preparedness under 10CFR50.72(b)(3)(xiii). The loss of NPIS affects Safety Parameter Display System (SPDS). SPDS is considered a significant portion of the WCGS emergency assessment capability. Because SPDS has been lost for longer than a short period of time, Wolf Creek Nuclear Operating Corporation is making this notification pursuant to 10CFR50.72(b)(3)(xiii). There is no other loss of normal procedures and are taking local readings of equipment normally monitored by the NPIS computer. Current plant status is still Mode 5, 0%. The licensee notified the NRC resident inspector.
SPDS function was restored at time of initial notification and no other compensatory measures are required. The licensee notified the NRC resident inspector. Notified Kriss Kennedy - Region 4 Duty Officer. |
| Where | |
|---|---|
Wolf Creek  Kansas (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
| Time - Person (Reporting Time:+-4.28 h-0.178 days <br />-0.0255 weeks <br />-0.00586 months <br />) | |
| Opened: | David Seeney 18:43 Nov 20, 2003 |
| NRC Officer: | Jeff Rotton |
| Last Updated: | Nov 21, 2003 |
| 40345 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Cold Shutdown (0 %) |
| After | Cold Shutdown (0 %) |
WEEKMONTHYEARENS 549682020-10-27T21:08:00027 October 2020 21:08:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Plan Dose Assessment Capability ENS 536472018-10-05T05:00:0005 October 2018 05:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness En Revision Imported Date 10/19/2018 ENS 521842016-08-16T16:00:00016 August 2016 16:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Failure of All Emergency Sirens ENS 512972015-08-06T22:39:0006 August 2015 22:39:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Non-Functional ENS 504072014-08-27T13:05:00027 August 2014 13:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Due to Power Supply Failure ENS 496922014-01-06T09:30:0006 January 2014 09:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Three Emergency Plan Sirens ENS 486492013-01-03T12:04:0003 January 2013 12:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Saftey Parameter Display System (Spds) ENS 467202011-04-04T05:30:0004 April 2011 05:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Sirens Out of Service Due to Severe Weather ENS 465752011-01-28T16:09:00028 January 2011 16:09:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Primary Communications Maintenance ENS 439742008-02-09T19:20:0009 February 2008 19:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System (Spds) Removed from Service for Scheduled Maintenance ENS 434402007-06-22T01:00:00022 June 2007 01:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness "Spds (Safety Parameter Display System) Inoperable Due to Plant Computer Inoperability ENS 433962007-05-31T07:10:00031 May 2007 07:10:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Plan Sirens Due to 69Kv Distribution System Fault ENS 433942007-05-29T13:08:00029 May 2007 13:08:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Safety Parameter Display System (Spds) Removed from Service for Computer Upgrade ENS 431192007-01-25T11:42:00025 January 2007 11:42:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Safety Parameters Display System (Spds) ENS 426352006-06-12T20:56:00012 June 2006 20:56:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds During Planned Computer Maintenance ENS 418312005-07-10T03:54:00010 July 2005 03:54:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability Due to Inoperable Ep Sirens ENS 417842005-06-17T21:54:00017 June 2005 21:54:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Safety Parameter Display System ENS 415092005-03-21T21:53:00021 March 2005 21:53:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Safety Parameter Display System (Spds) Function for Greater than 8 Hours. ENS 403452003-11-20T23:00:00020 November 2003 23:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Spds for Greater than 8 Hours ENS 402592003-10-18T22:20:00018 October 2003 22:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Assessment Capability 2020-10-27T21:08:00 | |
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