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Category:NRC Preliminary Notification of Event/Occurrence
MONTHYEARPNO-III-12-013, Planned Shutdown and Decommissioning of Kewaunee Power Station2012-10-23023 October 2012
PNO-III-12-013: Planned Shutdown and Decommissioning of Kewaunee Power Station
PNO-III-09-002, Kewaunee Unplanned Shutdown Due to Main Steam Pressure Instruments Not Calibrated as Required2009-04-20020 April 2009
PNO-III-09-002 - Kewaunee Unplanned Shutdown Due to Main Steam Pressure Instruments Not Calibrated as Required
PNO-III-07-004, A - Kewaunee Reactor Shutdown (Update)2007-03-12012 March 2007
PNO-III-07-004A - Kewaunee Reactor Shutdown (Update)
ML0706004812007-03-0101 March 2007
PNO-III-07-004: Kewaunee Reactor Shutdown
PNO-III-06-022, Kewaunee Reactor Shutdown and Startup2006-11-14014 November 2006
PNO-III-06-022: Kewaunee Reactor Shutdown and Startup
PNO-III-06-019, Kewaunee: Tritium Detected in Groundwater Beneath Plant Buildings2006-08-14014 August 2006
PNO-III-06-019 Kewaunee: Tritium Detected in Groundwater Beneath Plant Buildings
PNO-III-06-014, Kewaunee, Procedure Adherence Problems During Reactor Startup2006-05-23023 May 2006
PNO-III-06-014, Kewaunee, Procedure Adherence Problems During Reactor Startup
PNO-III-06-012, A: Kewaunee: Manual Reactor Shutdown Following Feedwater Pump Trip (Update)2006-05-17017 May 2006
PNO-III-06-012A: Kewaunee: Manual Reactor Shutdown Following Feedwater Pump Trip (Update)
ML0611803492006-04-28028 April 2006
PNO-III-06-012: Kewaunee, Manual Reactor Shutdown Following Feedwater Pump Trip
PNO-III-05-003, Kewaunee Shutdown in Excess of 72 Hours Due to Auxiliary Feedwater System Declared Inoperable Due to High Energy Line Break Concerns2005-02-23023 February 2005
PNO-III-05-003: Kewaunee Shutdown in Excess of 72 Hours Due to Auxiliary Feedwater System Declared Inoperable Due to High Energy Line Break Concerns
PNO-III-04-001, Kewaunee: Plant Shutdown Greater than 72 Hours and Initiation of NRC Special Inspection to Look Into Plant Shutdown Due to Both Trains of Safety Injection System Declared Inoperable2004-01-20020 January 2004
PNO-III-04-001 Kewaunee: Plant Shutdown Greater than 72 Hours and Initiation of NRC Special Inspection to Look Into Plant Shutdown Due to Both Trains of Safety Injection System Declared Inoperable
PNO-III-02-022, Shutdown to Repair Component Cooling Heat Exchanger2002-05-0707 May 2002
PNO-III-02-022 - Shutdown to Repair Component Cooling Heat Exchanger
2012-10-23
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March 12, 2007PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PNO-III-07-004AThis preliminary notification constitutes EARLY notice of events of POSSIBLE safety or publicinterest significance. The information is as initially received without verification or evaluation, andis basically all that is known by the Region III staff on this date.FacilityKewauneeDominion EnergyKewaunee, WIDocket: 50-305License: DPR-43Licensee Emergency Classification Notification of Unusual Event Alert Site Area Emergency General Emergency x Not Applicable
SUBJECT:
KEWAUNEE REACTOR SHUTDOWN (UPDATE)DESCRIPTION:
On Friday, March 9, 2007, the licensee restarted the Kewaunee Power Station after a 10-dayoutage. The outage was the result of an automatic reactor trip that occurred while the licenseewas conducting a routine test of a nuclear power measuring instrument. The licensee wasunable to identify the problem that resulted in the automatic trip, but did replace 88 relaysassociated with the reactor trip system. In addition, maintenance activities and engineeringevaluations related to plant electrical systems were completed during the outage in response toquestions raised by the NRC during a recent Component Design Bases Inspection.The NRC resident inspectors monitored the licensee's troubleshooting and maintenanceactivities, and observed the restart of the reactor.The State of Wisconsin was notified.
This information is current as of 7:00 a.m. on March 12, 2007.
The information in this preliminary notification has been reviewed with licensee management.CONTACTS:Patrick LoudenMichael Kunowski630/829-9627630/829-9618
