Spotlight
Preliminary Notification (PN) Reports for 2013
| January | February | March | Apil | May | June | July | August | September | October | November | December |
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| December | ||
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| PNO-III-13-008 | 12/13/2013 | Exelon Generation Co., LLC: Clinton Manual Scram Following Transformer Failure |
| PNO-IV-13-004A | 12/10/2013 | Entergy: Arkansas Nuclear One, Unit 2, Fire in Auxilary Transformer |
| PNO-IV-13-004 | 12/09/2013 | Entergy: Arkansas Nuclear One, Unit 2, Notification of Unusual Event |
| PNO-II-13-008A | 12/02/2013 | Duke Power Co.: Oconee Unit 1 Shutdown due to Reactor Coolant System (RCS) Pressure Boundary Leakage – (Update) |
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| November | ||
| PNO-II-13-008 | 11/12/2013 | Duke Power Co.: Oconee Unit 1 Shutdown due to Reactor Coolant System (RCS) Pressure Boundary Leakage |
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| September | ||
| PNO-III-13-007 | 09/20/2013 | FirstEnergy Nuclear Operating Company: Davis-Besse Nuclear Power Station: Davis-Besse Shield Building Laminar Cracks |
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| August | ||
| PNO-IV-13-002C | 08/08/2013 | Entergy: Arkansas Nuclear One, Unit 1, Return to Power Operation - (Update) |
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| July | ||
| PNO-III-13-006A | 07/15/2013 | FirstEnergy Nuclear Operating Company: Davis-Besse Nuclear Power Station: Davis-Besse Unplanned Shutdown Greater Than 72 Hours on June 29, 2013, Due to Trip of Reactor Coolant Pump and Subsequent Discovery of Reactor Pressure Boundary Leakage - (Update) |
| PNO-III-13-006 | 07/02/2013 | FirstEnergy Nuclear Operating Company: Davis-Besse Nuclear Power Station: Davis-Besse Unplanned Shutdown Greater Than 72 Hours on June 29, 2013, Due to Trip of Reactor Coolant Pump and Subsequent Discovery of Reactor Pressure Boundary Leakage |
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| June | ||
| PNO-III-13-005 | 06/18/2013 | FirstEnergy Nuclear Operating Company: Perry Nuclear Power Plant: Unplanned Shutdown Greater than 72 Hours Due to a Pressure Boundary Leak |
| PNO-III-13-004B | 06/17/2013 | Entergy Nuclear Operations, Inc.: Palisades Shutdown Due to Safety Injection Refueling Water Tank (SIRWT) Leakage - (Update) |
| PNO-IV-13-003 | 06/07/2013 | Southern California Edison Company: San Onofre Units 2 and 3: Licensee Announcement of Permanent Shutdown of San Onofre Nuclear Generating Station (Songs) Units 2 and 3 |
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| May | ||
| PNO-III-13-004A | 05/06/2013 | Entergy Nuclear Operations, Inc.: Palisades Shutdown Due to Safety Injection Refueling Water Storage Tank (SIRWT) Leakage - (Update) |
| PNO-III-13-004 | 05/06/2013 | Entergy Nuclear Operations, Inc.: Palisades Shutdown Due to Safety Injection Refueling Water Storage Tank Leakage |
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| April | ||
| PNO-IV-13-002B | 04/30/2013 | Entergy: Arkansas Nuclear One Unit 2 Reactor Trip and Notification of Unusual Event - (Update) |
| PNO-IV-13-001A | 04/23/2013 | South Texas Project Nuclear Operating Company: South Texas Project Unit 2 Reactor Trip - (Update) |
| PNO-II-13-005A | 04/23/2013 | Tennessee Valley Authority: Notification of Unusual Event Due to Security Incident - (Update) |
| PNO-II-13-005 | 04/21/2013 | Tennessee Valley Authority: Notification of Unusual Event Due to Security Incident |
| PNO-III-13-003 | 04/18/2013 | Exelon Generation: LaSalle County Station Loss of Off-Site Power and Dual Unit Reactor Scram |
| PNO-IV-13-002A | 04/09/2013 | Entergy: Augmented Inspection Team Onsite at Arkansas Nuclear One - Update - (Update) |
| PNO-IV-13-002 | 04/02/2013 | Entergy: Arkansas Nuclear One, Units 2, Notification Of Unusual Event |
| PNO-II-13-003A | 04/01/2013 | Florida Power and Light Co.: Unplanned Shutdown Greater Than 72 Hours Due to Closure Of B Train Steam Generator Main Steam Isolation Valve - (Update) |
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| March | ||
| PNO-II-13-004A | 03/27/2013 | Tennessee Valley Authority (TVA): Unplanned Shutdown Greater Than 72 Hours Due to Reactor Feedwater Heater Level Control Line Leak - (Update) |
| PNO-II-13-004 | 03/21/2013 | Tennessee Valley Authority (TVA): Unplanned Shutdown Greater Than 72 Hours Due to Reactor Feedwater Heater Level Control Line Leak |
| PNO-II-13-003 | 03/14/2013 | Florida Power and Light Co.: Unplanned Shutdown Greater Than 72 Hours Due to Closure of B Train Steam Generator Main Steam Isolation Valve |
| PNO-II-13-001A | 03/11/2013 | Florida Power and Light Co.: Unit Startup Following Unplanned Shutdown Greater Than 72 Hours Due To High Reactor Coolant Pump Seal Leak Off Rate - (Update) |
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| February | ||
| PNO-III-13-002A | 02/22/2013 | Entergy Nuclear Operations, Inc.: Palisades Shutdown Due to Leakage from the Component Cooling Water (CCW) System - (Update) |
| PNO-II-13-001 | 02/19/2013 | Florida Power and Light Co.: Unplanned Shutdown Greater than 72 Hours Due to High Reactor Coolant Pump Seal Leak Off Rate |
| PNO-I-13-001D | 02/19/2013 | Entergy Nuclear Operations, Inc./ Pilgrim Station: Unusual Event Declared Due to Loss of Offsite Power During Winter Storm Nemo - (Update) |
| PNO-III-13-002 | 02/15/2013 | Entergy Nuclear Operations, Inc.: Palisades Shutdown Due to Leakage from the Component Cooling Water (CCW) System |
| PNO-I-13-001C | 02/11/2013 | Entergy Nuclear Operations, Inc./ Pilgrim Station: Unusual Event Declared Due to Loss of Offsite Power During Winter Storm Nemo - (Update) |
| PNO-I-13-001B | 02/10/2013 | Entergy Nuclear Operations, Inc./ Pilgrim Station: Unusual Event Declared Due to Loss of Offsite Power During Winter Storm Nemo - (Update) |
| PNO-I-13-001A | 02/09/2013 | Entergy Nuclear Operations, Inc./ Pilgrim Station: Unusual Event Declared Due to Loss of Offsite Power During Winter Storm Nemo - (Update) |
| PNO-I-13-001 | 02/09/2013 | Entergy Nuclear Operations, Inc./ Pilgrim Station: Unusual Event Declared Due to Loss of Offsite Power During Winter Storm Nemo |
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| January | ||
| PNO-III-13-001 | 01/29/2013 | FirstEnergy Nuclear Operating Company/Perry Nuclear Power Plant: Unplanned Shutdown Greater than 72 Hours Due to an Automatic Reactor Protection System Actuation |
| PNO-IV-13-001 | 01/09/2013 | South Texas Project Nuclear Operating Company: South Texas Project Unit 2 Reactor Trip |
| PNO-lll-12-016A | 01/04/2013 | Detroit Edison Company/Fermi Nuclear Power Plant, Unit 2: Unplanned Shutdown Greater than 72 Hours Due to Hydrogen In-Leakage to the Stator Water Cooling System – (Update) |
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Page Last Reviewed/Updated Tuesday, March 09, 2021
Page Last Reviewed/Updated Tuesday, March 09, 2021