ENS 45922: Difference between revisions
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Revision as of 17:30, 24 September 2017
ENS Event | |
|---|---|
09:00 May 13, 2010 | |
| Title | Partial Loss Of Erds And Spds Due To Planned Maintenance |
| Event Description | A partial loss of ERDS [Emergency Response Data System] and SPDS [Safety Parameter Display System] capability will occur while a planned replacement of the site's plant process computer power supplies is performed:
The following is a list of the inputs to ERDS that will be lost: IRM 14 PERCENT OF RANGE SRM 24 NEUTRON FLUX TORUS WIDE RANGE LEVEL CORE SPRAY SYSTEM 1 AND 2 FLOWS MAIN STEAM LINE BAND C RAD LEVELS DW [Dry Well] WIDE RANGE PRESS STACK RAGEMS [Radioactive Gas Effluent Monitoring System] LOG LO RNG CH 2 The following is a list of the SPDS inputs that will be lost: CORE SPRAY SYSTEM 1 AND 2 FLOWS EMRV [Electromatic Relief Valves] AND SAFETY VALVE INDICATIONS DW PRESSURE MS [Main Steam] A,B,C, AND D RAD MONITORS DW 02 CONCENTRATION ERDS and SPDS are expected to be returned to full functionality by 2000 EDT Emergency plan contingency measures are in place to transmit data should it be required during the maintenance period. The licensee has notified the NRC Resident Inspector.
|
| Where | |
|---|---|
| Oyster Creek New Jersey (NRC Region 1) | |
| 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: | Herbert Tritt 05:00 May 13, 2010 |
| NRC Officer: | Howie Crouch |
| Last Updated: | May 13, 2010 |
| 45922 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Oyster Creek with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | |
WEEKMONTHYEARENS 539772019-04-04T15:55:0004 April 2019 15:55:00
[Table view]10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Non-Functional ENS 528612017-07-14T21:24:00014 July 2017 21:24:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Technical Support Center Ventilation System ENS 526742017-04-12T19:30:00012 April 2017 19:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of the Technical Support Center Ventilation System ENS 524652016-12-29T07:50:00029 December 2016 07:50:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Technical Suppport Center Ventilation System ENS 516772016-01-23T10:51:00023 January 2016 10:51:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to the Site Emergency Building ENS 511082015-06-01T11:00:0001 June 2015 11:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service for Planned Maintenance ENS 502202014-06-23T13:00:00023 June 2014 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Communications Due to Planned Maintenance ENS 498692014-03-04T10:02:0004 March 2014 10:02:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service for Planned Maintenance ENS 488612013-03-28T12:04:00028 March 2013 12:04:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Ventilation Out of Service for Planned Maintenance ENS 486572013-01-08T10:05:0008 January 2013 10:05:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Planned Technical Support Center Ventilation Maintenance ENS 484952012-11-08T15:20:0008 November 2012 15:20:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Emergency Planning Zone Sirens ENS 484502012-10-29T19:00:00029 October 2012 19:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of 21 Emergency Notification Sirens ENS 481022012-07-13T16:00:00013 July 2012 16:00:00 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 Intermittent Signal Interference with Emergency Sirens ENS 480242012-06-14T10:07:00014 June 2012 10:07:00 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 Technical Support Center Out of Service and Offsite Notification Due to Loss of Power to Site Emergency Building ENS 477462012-03-15T12:30:00015 March 2012 12:30:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Technical Support Center Out of Service Due to Planned Maintenance ENS 461992010-08-23T13:00:00023 August 2010 13:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Erds Capability ENS 459222010-05-13T09:00:00013 May 2010 09:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Partial Loss of Erds and Spds Due to Planned Maintenance ENS 458242010-04-08T04:00:0008 April 2010 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Stack Sample Line Separated at Fitting ENS 457662010-03-14T14:27:00014 March 2010 14:27:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Power to Emergency Operations Facility ENS 453862009-09-28T11:54:00028 September 2009 11:54:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Plant Process Computer Outage Resulting in a Loss of Erds and Spds ENS 450332009-04-30T17:06:00030 April 2009 17:06:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Emergency Response Data System (Erds) Unavailable for Greater than 1 Hour ENS 445262008-09-29T13:18:00029 September 2008 13:18:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Internal Phone Systems ENS 443342008-07-03T09:40:0003 July 2008 09:40:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss of Commercial Telephone and Dedicated Ep Landlines ENS 421532005-11-18T04:00:00018 November 2005 04:00:00 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness Loss and Recovery of Communications 2019-04-04T15:55:00 | |
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