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Category:NRC Preliminary Notification of Event/Occurrence
MONTHYEARML21190A2422021-07-0909 July 2021 PNO-lll-21-001A: Donald C. Cook Nuclear Plant, Unit 2, Update: Unplanned Shutdown Greater than 7 Days Due to Main Steam Leakage ML21181A4162021-06-30030 June 2021 PNO-lll-21-001 Donald C. Cook Nuclear Plant, Unit 2: Unplanned Shutdown Greater than 7 Days Due to Main Steam Leakage PNO-III-20-001A, Update: Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits2020-05-11011 May 2020 PNO-III-20-001A Update: Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits PNO-III-20-001, Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits2020-05-0404 May 2020 PNO-III-20-001: Unplanned Shutdown Greater than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits ML17256A7152017-09-13013 September 2017 PNO-III-2017-002: Donald C. 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Cook Dual Unit Manual Trip Resulting in a Shutdown for Greater than 72 Hours on Unit 22014-11-0404 November 2014 PNO-III-14-010: D.C. Cook Dual Unit Manual Trip Resulting in a Shutdown for Greater than 72 Hours on Unit 2 ML1123601032011-08-23023 August 2011 PNO-II-11-005: North Anna, Emergency Declarations Due to Seismic Event PNO-I-10-003, Unusual Event Declarations Due to Seismic Activity (Vermont Yankee and D.C. Cook)2010-06-23023 June 2010 PNO-I-10-003: Unusual Event Declarations Due to Seismic Activity (Vermont Yankee and D.C. Cook) PNO-III-09-015, D.C. Cook Unit 1, Return to 100 Percent Power2009-12-23023 December 2009 PNO-III-09-015: D.C. Cook Unit 1, Return to 100 Percent Power PNO-III-09-014, D.C. Cook Unit 1, Restart2009-12-18018 December 2009 PNO-III-09-014: D.C. Cook Unit 1, Restart PNO-III-09-013, D. C. Cook Unit 1 Mode Change Following 14 Months Forced Outage2009-11-23023 November 2009 PNO-III-09-013 - D. C. Cook Unit 1 Mode Change Following 14 Months Forced Outage PNO-III-09-006, A: D.C. Cook Unit 2, Forced Shutdown for Greater than 72 Hours to Repair Reactor Coolant Pump Seal (Update)2009-08-10010 August 2009 PNO-III-09-006A: D.C. Cook Unit 2, Forced Shutdown for Greater than 72 Hours to Repair Reactor Coolant Pump Seal (Update) ML0920901352009-07-28028 July 2009 PNO-III-09-006: D.C. Cook, Unit 2 Forced Shutdown for Greater than 72 Hours to Repair Reactor Coolant Pump Seal PNO-III-08-011, D. C. Cook - Unit 1 Manual Trip Due to Main Turbine Generator Fire and Significant Fire Suppression System Degradation2008-09-22022 September 2008 PNO-III-08-011: D. C. Cook - Unit 1 Manual Trip Due to Main Turbine Generator Fire and Significant Fire Suppression System Degradation PNO-III-08-004, A, Cook and Palisades, Update - Unusual Events Declared Due to Earthquake2008-04-18018 April 2008 PNO-III-08-004A, Cook and Palisades, Update - Unusual Events Declared Due to Earthquake ML0810903102008-04-18018 April 2008 PNO-III-08-004: Cook & Palisades, Unusual Events Declared Due to Earthquake PNO-III-06-017, A: D.C. Cook: Unit 1 Shuts Down Due to High Containment Air Temperature (Update)2006-08-0303 August 2006 PNO-III-06-017A: D.C. Cook: Unit 1 Shuts Down Due to High Containment Air Temperature (Update) ML0621302182006-08-0101 August 2006 PNO-III-06-017: D. C. Cook Unit 1 Shuts Down Due to High Containment Air Temperature PNO-III-05-015, D. C. Cook Unit 2 Special Inspection of Electrical Problems After Reactor Trip2005-11-10010 November 2005 PNO-III-05-015: D. C. Cook Unit 2 Special Inspection of Electrical Problems After Reactor Trip PNO-III-04-004, Indiana Michigan Power Co, Shutdown of D.C. Cook Unit 1 for Greater than 72 Hours2004-03-30030 March 2004 PNO-III-04-004: Indiana Michigan Power Co, Shutdown of D.C. Cook Unit 1 for Greater than 72 Hours PNO-III-03-021, D.C. Cook Dual Unit Shutdown Resulting from Fish Intrusion2003-04-24024 April 2003 PNO-III-03-021: D.C. Cook Dual Unit Shutdown Resulting from Fish Intrusion PNO-III-03-002, D.C. Cook Reactor Trip Due to Main Transformer Fire2003-01-21021 January 2003 PNO-III-03-002: D.C. Cook Reactor Trip Due to Main Transformer Fire PNO-III-02-025, A - Alert -- Fire in D.C. Cook Unit 1 Switchyard (Update)2002-06-13013 June 2002 PNO-III-02-025A - Alert -- Fire in D.C. Cook Unit 1 Switchyard (Update) 2021-07-09
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PRELIMINARY NOTIFICATION- REGION III August 10, 2009 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PNO-III-09-006A
This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region III staff on this date.
Facility Donald C. Cook Nuclear Plant Indiana Michigan Power Company Stevensville, MI Docket: 50-316 License: DPR-74 Licensee Emergency Classification Notification of Unusual Event Alert Site Area Emergency General Emergency X Not Applicable
SUBJECT:
D.C. COOK UNIT 2 FORCED SHUTDOWN FOR GREATER THAN 72 HOURS TO REPAIR REACTOR COOLANT PUMP SEAL (UPDATE)
DESCRIPTION:
On August 8, 2009, the Cook Nuclear Plant Unit 2 resumed operation after a maintenance outage that was started on July 26, 2009, to replace a degraded Reactor Coolant Pump Seal. The reactor was made critical at 2:05 a.m. (CDT) on August 8, 2009, and the main generator was synchronized to the grid at 10:17 a.m. (CDT) on August 8, 2009. The license replaced one Reactor Coolant Pump Seal during this outage.
The resident inspectors observed the licensee returning the plant to operation.
The State of Michigan will be notified. The information in this preliminary notification has been reviewed with licensee management.
This information is current as of 9:00 a.m. (CDT) on August 10, 2009.
CONTACTS: Jay Lennartz, SRI Jamnes Cameron, Chief 269/465-5353 630/829-9833
ADAMS Accession No. ML092220545