ENS 45653: Difference between revisions

v t e ENS Event
14:30 Jan 25, 2010
Title	Emergency Response Data System Unavailable Due to Plant Process Computer Maintenance
Event Description	At 0930 on Monday, January 25, 2010, the Cook Nuclear Plant (CNP) Unit 1 Plant Process Computer (PPC) will be removed from service for scheduled maintenance which will take the Emergency Response Data System (ERDS) out of service. The scheduled maintenance is planned from 0930 hours0.0108 days <br />0.258 hours <br />0.00154 weeks <br />3.53865e-4 months <br /> EST until 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br /> EST. Personnel will be performing computer system backups and maintenance. Compensatory measures exist within the CNP Emergency Response procedure to provide plant data via the Emergency Notification System until the ERDS can be returned to service. The licensee has notified the NRC Senior Resident Inspector. This notification is being made in accordance with NUREG 1022 Revision 2 for CFR 50.72(b)(3)(xiii) due to any event that results in a major loss of emergency assessment capability, offsite response capability, or offsite communications capability (e.g., significant portion of control room indication, Emergency Notification System, or offsite notification system). * * UPDATE FROM RICH KRESS TO JOE O'HARA AT 1207 EST ON 1/25/10 * * * The Unit 1 Plant Process Computer and the Emergency Response Data System (ERDS) were returned to functional Status at 11:35 on Monday, January 25, 2010. This follow up notification is being made to provide closure from the initial notification under CFR 50.72 (b)(3)(xiii) due to any event that results in a major loss of emergency assessment capability, offsite response capability, or offsite communications capability (e.g., significant portion of control room indication, Emergency Notification System, or offsite notification system). The NRC Resident Inspector has been notified. Notified R3DO(Lipa)

ENS 45653 +/-
Where
Cook Michigan (NRC Region 3)
Reporting

10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
Time - Person (Reporting Time:+-5.35 h-0.223 days <br />-0.0318 weeks <br />-0.00733 months <br />)
Opened:	Rich Kress 09:09 Jan 25, 2010
NRC Officer:	Donald Norwood
Last Updated:	Jan 25, 2010
45653 - NRC Website Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 45653\u003C/a\u003E - \u003Ca href=\"/Cook\" title=\"Cook\"\u003ECook\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EEmergency Response Data System Unavailable Due to Plant Process Computer Maintenance\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 45653 - Cook\n","link":"","lat":41.97790555555556,"lon":-86.56431666666667,"icon":"/w/images/3/39/American_Electric_Power_icon.png"}],"imageoverlays":null}
v • d • e

v t e Emergency Notification System
Cook with 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
WEEKMONTHYEAR2014-06-30T11:30:00 [Table view]
[ENS list for Cook]

@@ Line 16: / Line 16: @@
 | event date = 01/25/2010 09:30 EST
 | last update date = 01/25/2010
-| title = Emergency Response Data System Unavailable  Due To Plant Process Computer Maintenance
+| title = Emergency Response Data System Unavailable  Due to Plant Process Computer Maintenance
 | event text = At 0930 on Monday, January 25, 2010, the Cook Nuclear Plant (CNP) Unit 1 Plant Process Computer (PPC) will be removed from service for scheduled maintenance which will take the Emergency Response Data System (ERDS) out of service.  The scheduled maintenance is planned from 0930 hours EST until 1530 hours EST.  Personnel will be performing computer system backups and maintenance.
 Compensatory measures exist within the CNP Emergency Response procedure to provide plant data via the Emergency Notification System until the ERDS can be returned to service.

v t e Unit 1
W-4-LP
Reactor critical	Critical
Scram	No
Before	Power Operation (100 %)
After	Power Operation (100 %)

ENS 45653: Difference between revisions

Latest revision as of 21:10, 1 March 2018

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ENS 45653: Difference between revisions

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