Spotlight
Preliminary Notification (PN) Reports for 2010
| January | February | March | Apil | May | June | July | August | September | October | November | December |
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| December | ||
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| PNO-II-10-005 | 12/23/2010 | Honeywell International, Inc.: Hydrofluoric Acid Release at the Honeywell Uranium Conversion Facility |
| PNO-III-10-018A | 12/21/2010 | NextEra Energy Point Beach: Point Beach Unit 2 Reactor Unplanned Shutdown Due to Control Rod Drive Problems (Update) |
| PNO-III-10-018 | 12/17/2010 | NextEra Energy Point Beach: Point Beach Unit 2 Reactor Unplanned Shutdown Due to Control Rod Drive Problems |
| PNO-IV-10-006 | 12/03/2010 | Pacific Steel and Recycling: Loss of Control of Licensed Material |
| PNO-III-10-017 | 12/03/2010 | Fermi Power Plant, Unit 2: Condensate Overflows Into Turbine Building |
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| November | ||
| PNO-III-10-016 | 11/30/2010 | Detroit Edison Company: Injured Person Transported Off-Site |
| PNO-IV-10-005B | 11/29/2010 | South Texas Project Unit 2 Reactor Trip and Notification of Unusual Event (Update) |
| PNO-I-10-006A | 11/26/2010 | Entergy Nuclear Operations, Inc.: Notification of Alert Declared Due to Explosion as a Result of 21 Main Transformer Failure at Indian Point Unit 2 (Update) |
| PNO-IV-10-005A | 11/12/2010 | South Texas Project Unit 2 Reactor Trip and Notification of Unusual Event (Update) |
| PNO-I-10-006 | 11/08/2010 | Entergy Nuclear Operations, Inc.: Notification of Alert Declared Due to Explosion as a Result of 21 Main Transformer Failure at Indian Point Unit 2 |
| PNO-IV-10-005 | 11/03/2010 | South Texas Project Unit 2 Reactor Trip and Notification of Unusual Event |
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| October | ||
| PNO-IV-10-004A | 10/14/2010 | Wolf Creek Nuclear Operating Corp.: Wolf Creek Technical Specification Required Reactor Shutdown (Update) |
| PNO-IV-10-004 | 10/05/2010 | Wolf Creek Nuclear Operating Corp.: Wolf Creek Technical Specification Required Reactor Shutdown |
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| September | ||
| PNO-IV-10-003A | 09/07/2010 | Entergy Operations, Inc.: Arkansas Nuclear One, Unit 2 Technical Specification Required Reactor Shutdown (Update) |
| PNO-IV-10-003 | 09/07/2010 | Entergy Operations, Inc.: Arkansas Nuclear One, Unit 2 Technical Specification Required Reactor Shutdown |
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| August | ||
| PNO-III-10-015 | 08/31/2010 | Exelon Generation Co.: Initiation of Reactive Inspection in Response to a Failure of the Mechanism that Cools Water Surrounding a Canister Containing Spent Fuel |
| PNO-III-10-014A | 08/23/2010 | Exelon Generation Co.: Braidwood Units 1 & 2 - Shutdown of Braidwood Reactors Unit 1 & 2 (Update) |
| PNO-III-10-014 | 08/17/2010 | Exelon Generation Co.: Braidwood Units 1 & 2 - Shutdown of Braidwood Reactors Unit 1 & 2 |
| PNO-II-10-004A | 08/11/2010 | Duke Energy Carolinas LLC.: Notification of Unusual Event Due to Loss of Annunciators (Update) |
| PNO-II-10-004 | 08/11/2010 | Duke Energy Carolinas LLC.: Notification of Unusual Event Due to Loss of Annunciators |
| PNO-I-10-005 | 08/10/2010 | PPL, Susquehanna, LLC: Susquehanna Station - Alert Declared Due to High Refrigerant Levels in the Unit 1 Reactor Building |
| PNO-III-10-013 | 08/09/2010 | Former Breckenridge Disposal Site: Potentially Hazardous Material Spill at the Former Breckenridge Disposal Site |
| PNO-I-10-004A | 08/04/2010 | PPL, Susquehanna, LLC: Susquehanna Unit 1 Manual Scram and Shutdown Greater Than 72 Hours Due to an Internal Flooding Event (Update) |
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| July | ||
| PNO-111-10-012A | 07/22/2010 | Exelon Generation Co.: LaSalle Units 1 and 2 Leakage of Tritium from Onsite Storage Tank (Update) |
| PNO-I-10-004 | 07/20/2010 | PPL, Susquehanna, LLC: Susquehanna Unit 1 Manual Scram and Shutdown Greater Than 72 Hours Due to an Internal Flooding Event |
| PNO-II-10-002B | 07/08/2010 | Carolina Power and Light Company: H.B. Robinson Steam Electric Plant - Fires Affecting Safety Related Equipment; Special Inspection Upgraded to an Augmented Inspection (update) |
| PNO-III-10-010A | 07/06/2010 | Entergy Nuclear Operations, Inc.: Update - Palisades Forced Shutdown for Greater than 72 Hours to Replace Leaking Control Rod Drive Seal |
| PNO-III-10-012 | 07/02/2010 | Exelon Generation Co.: LaSalle Leakage of Tritium from Onsite Storage Tank |
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| June | ||
| PNO-III-10-011 | 06/29/2010 | First Energy Nuclear Operating Company: Davis-Besse Start-Up Following Repairs of Control Rod Drive Mechanism Nozzle Flaw Indications |
| PNO-II-10-003 | 06/29/2010 | Honeywell International, Inc.: Bargaining Unit Lock-Out at Honeywell- Metropolis Works |
| PNO-III-10-010 | 06/24/2010 | Entergy Nuclear Operations, Inc.: Palisades – Forced Shutdown for Greater than 72 Hours to Replace Leaking Control Rod Drive Seal |
| PNO-I-10-003 | 06/23/2010 | Entergy Nuclear Operations, Inc./American Electric Power: Unusual Event Declarations Due to Seismic Activity at Vermont Yankee and D.C. Cook Stations |
| PNO-IV-10-002 | 06/23/2010 | Pacific Gas and Electric Company: Alert at Diablo Canyon Power Plant Unit 1 |
| PNO-III-10-009A | 06/17/2010 | Detroit Edison Company: Fermi 2 Alert and Unplanned Shutdown for Greater Than 72 Hours (Update) |
| PNO-III-10-009 | 06/07/2010 | Detroit Edison Company: Fermi 2 Alert and Unplanned Shutdown for Greater Than 72 Hours |
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| May | ||
| PNO-I-10-002 | 05/28/2010 | Entergy Nuclear Operations, Inc.: Loss of Normal Communications / Storm Impact Offsite at Vermont Yankee |
| PNO-III-10-008 | 05/20/2010 | First Energy Nuclear Operating Company: Public Availability of Two NRC Employees Differing Professional Opinions Concerning Past Issues at Davis Besse |
| PNO-III-10-007 | 05/19/2010 | Exelon Generation Co./Quad Cities: Unusual Event Declared at Quad Cities Due to Freon Leak in the Access Building |
| PNO-III-10-006A | 05/19/2010 | FirstEnergy Nuclear Operating Company/Perry Nuclear Power Station: Manual Reactor Scram Due to Loss of Control Rod Drive Charging Water Header Pumps (Update) |
| PNO-III-10-006 | 05/14/2010 | FirstEnergy Nuclear Operating Company/Perry Nuclear Power Station: Manual Reactor Scram Due to Loss of Control Rod Drive Charging Water Header Pumps |
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| April | ||
| PNO-II-10-002A | 04/15/2010 | Carolina Power and Light Company: H.B. Robinson Steam Electric Plant - Fires Affecting Safety Related Equipment (Update) |
| PNO-III-10-003A | 04/12/2010 | First Energy Nuclear Operating Company: Davis-Besse Control Rod Drive Mechanism Nozzle Indications (Update) |
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| March | ||
| PNO-III-10-005A | 03/31/2010 | First Energy Nuclear Operating Company: Turbine-Driven Feedwater Pump Fire Caused by Leak in Lube Oil System (Update) |
| PNO-III-10-004A | 03/31/2010 | Detroit Edison Company: Fermi 2 Scram and Unplanned Shutdown for Greater Than 72 Hours (Update) |
| PNO-III-10-004 | 03/30/2010 | Detroit Edison Company: Fermi 2 Scram and Unplanned Shutdown for Greater Than 72 Hours |
| PNO-III-10-005 | 03/30/2010 | First Energy Nuclear Operating Company: Turbine-Driven Feedwater Pump Fire Caused by Leak in Lube Oil System |
| PNO-II-10-002 | 03/29/2010 | Carolina Power and Light Company: H.B. Robinson Steam Electric Plant - Fires Affecting Safety Related Equipment |
| PNO-III-10-003 | 03/16/2010 | First Energy Nuclear Operating Company: Davis-Besse Control Rod Drive Mechanism Nozzle Indications |
| PNO-I-10-001A | 03/01/2010 | Constellation Energy Nuclear Group, Inc.: Update - Calvert Cliffs Dual-Unit Trip Due to Partial Loss of Offsite Power |
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| February | ||
| PNO-I-10-001 | 02/19/2010 | Constellation Energy Nuclear Group, Inc.: Calvert Cliffs Dual-Unit Trip Due to Partial Loss of Offsite Power |
| PNO-II-10-001 | 02/19/2010 | Catawba Nuclear Station, Unit 1: RCS Pressure Boundary Leakage identified on RTD Weld |
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| January | ||
| PNO-III-10-002 | 01/21/2010 | Prairie Island Units 1 and 2, Northern States Power-Minnesota: Fire in a Nonsafety-Related Diesel Generator |
| PNO-IV-10-001A | 01/19/2010 | Pacific Gas and Electric Company: Earthquake Near Humboldt Bay Power Plant (Update) |
| PNO-IV-10-001 | 01/11/2010 | Pacific Gas and Electric Company: Earthquake Near Humboldt Bay Power Plant |
| PNO-III-10-001 | 01/11/2010 | Exelon Generation Co., LLC: Braidwood Station Declaration of Unusual Event Due to Fire within the Protected Area |
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Page Last Reviewed/Updated Tuesday, March 09, 2021
Page Last Reviewed/Updated Tuesday, March 09, 2021