WEEKMONTHYEARENS 570462024-03-23T04:04:00023 March 2024 04:04:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Trip
ENS 565702023-06-13T03:33:00013 June 2023 03:33:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Accident Mitigation - High Pressure Coolant Injection Declared Inoperable
ENS 564292023-03-23T15:45:00023 March 2023 15:45:00
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Design Flaw Discovered in Mechanical Draft Cooling Tower Fan Brakes
ENS 562952023-01-04T06:48:0004 January 2023 06:48:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection Inoperable
ENS 562412022-11-28T09:00:00028 November 2022 09:00:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection System Inoperable
ENS 560542022-08-18T01:08:00018 August 2022 01:08:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Safety System Inoperability
ENS 558942022-05-11T22:14:00011 May 2022 22:14:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection Inoperable
ENS 555222021-10-14T17:20:00014 October 2021 17:20:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Traversing IN-CORE Probe a Ball Valve Inoperable
ENS 554232021-08-22T09:29:00022 August 2021 09:29:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
HPCI Declared Inoperable
ENS 554032021-08-11T10:34:00011 August 2021 10:34:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
HPCI Inoperability
ENS 555582021-06-03T06:41:0003 June 2021 06:41:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection Inoperable Due to LOW Level Instrumentation
ENS 545672020-03-05T17:35:0005 March 2020 17:35:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Momentarily Inoperable
ENS 544522019-12-18T14:08:00018 December 2019 14:08:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Pressure Degraded
ENS 542992019-09-30T02:28:00030 September 2019 02:28:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Pressure Exceeded Technical Specification Requirement
ENS 542932019-09-25T16:03:00025 September 2019 16:03:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection Declared Inoperable
ENS 541882019-07-30T14:14:00030 July 2019 14:14:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Unplanned High Pressue Coolant Injection Inoperability
ENS 540942019-05-30T02:10:00030 May 2019 02:10:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Declared Inoperable
ENS 538832019-02-19T17:53:00019 February 2019 17:53:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Inoperable
ENS 538112019-01-01T05:00:0001 January 2019 05:00:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Gland Seal Exhauster - Automatic Trip Function Inoperable
ENS 537722018-12-04T14:35:0004 December 2018 14:35:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
En Revision Imported Date 1/31/2019
ENS 535372018-08-03T04:00:0003 August 2018 04:00:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection Declared Inoperable
ENS 534352018-05-31T18:20:00031 May 2018 18:20:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Reactor Water Cleanup System Declared Inoperable
ENS 534292018-05-27T10:30:00027 May 2018 10:30:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Reactor Water Cleanup System Declared Inoperable
ENS 533362018-04-14T14:40:00014 April 2018 14:40:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge
Automatic Reactor Scram and Emergency Core Cooling System Injection
ENS 531652018-01-11T15:41:00011 January 2018 15:41:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Momentary Low Pressure
ENS 529582017-09-09T14:00:0009 September 2017 14:00:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Mechanical Draft Cooling Tower Fans Declared Inoperable
ENS 526512017-03-30T21:10:00030 March 2017 21:10:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 524372016-12-15T15:10:00015 December 2016 15:10:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Momentary Low Pressure
ENS 524342016-12-15T04:45:00015 December 2016 04:45:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Momentary Low Pressure Due to High Winds
ENS 524322016-12-14T05:00:00014 December 2016 05:00:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Pressure Boundary Out of Specification
ENS 523982016-11-29T02:05:00029 November 2016 02:05:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 523802016-11-20T02:50:00020 November 2016 02:50:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 523312016-10-28T19:00:00028 October 2016 19:00:00
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Standby Liquid Control Technical Specification Not Met
ENS 523202016-10-27T03:00:00027 October 2016 03:00:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 522052016-08-27T19:00:00027 August 2016 19:00:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 521462016-08-02T14:15:0002 August 2016 14:15:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 520842016-07-13T23:55:00013 July 2016 23:55:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 520762016-07-09T00:05:0009 July 2016 00:05:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specification Not Met
ENS 516762016-01-23T00:35:00023 January 2016 00:35:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Low Pressure Coolant Injection Pump Isolation Valve Would Not Reopen
ENS 517552016-01-06T20:14:0006 January 2016 20:14:00
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Power Reduction Due to Automatic Opening of the Turbine Bypass Valves
ENS 514492015-10-04T13:56:0004 October 2015 13:56:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Inoperable with the Potential to Drain the Reactor Vessel
ENS 513912015-09-14T03:05:00014 September 2015 03:05:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Manual Scram Due to Loss of Turbine Building Closed Cooling Water
ENS 513132015-08-12T14:07:00012 August 2015 14:07:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Technical Specifications Not Met
ENS 512022015-07-07T18:35:0007 July 2015 18:35:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Pressure Boundary Vacuum Not Maintained within Specifications
ENS 508742015-03-09T19:21:0009 March 2015 19:21:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
Tech Spec Required Shutdown Due to Swing Bus Automatic Throwover Failure
ENS 517562015-02-21T05:30:00021 February 2015 05:30:00
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Power Reduction Due to Automatic Opening of a Turbine Bypass Valve
ENS 508312015-02-19T08:04:00019 February 2015 08:04:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Building Declared Inoperable Due to Ventilation System Trip
ENS 498012014-02-06T17:54:0006 February 2014 17:54:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Emergency Equipment Cooling Water in Manual Override Due to Human Performance Error
ENS 495752013-11-24T05:01:00024 November 2013 05:01:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Momentary Loss of Reactor Building Ventilation
ENS 488862013-04-03T14:53:0003 April 2013 14:53:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Cooling Water Makeup Pump Failed to Start During a Surveillance Test
ENS 486892013-01-22T06:13:00022 January 2013 06:13:00
10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Secondary Containment Pressure Positive for 12 Seconds
ENS 472422011-09-06T05:04:0006 September 2011 05:04:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Control Room Indication of Hpci Minimum Flow Valve Position Lost
ENS 465152010-12-28T17:20:00028 December 2010 17:20:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection System Inoperable Due to Inoperable Minimum Flow Valve
ENS 450352009-04-30T14:39:00030 April 2009 14:39:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Hpci Declared Inoperable Due to Failure of Test Line Pressure Control Valve During Surveillance Test
ENS 448112009-01-28T12:30:00028 January 2009 12:30:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
High Pressure Coolant Injection System Inoperable
ENS 446982008-12-05T02:18:0005 December 2008 02:18:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Unplanned Hpci Inoperability
ENS 440992008-03-26T14:45:00026 March 2008 14:45:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Control Room Pressure Boundary Door Blocked Open
ENS 440622008-03-13T18:45:00013 March 2008 18:45:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Reactor Building to Torus Vacuum Breaker Pressure Switches May Not Perform Design Function
ENS 427832006-08-17T23:00:00017 August 2006 23:00:00
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat, 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Emergency Diesel Generators Inoperable Due to Undersized Breaker Control Transformers
ENS 426222006-06-06T20:00:0006 June 2006 20:00:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Failure to Meet Emergency Equipment Service Water Surveillance Requirement
ENS 422242005-12-23T03:25:00023 December 2005 03:25:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition
Eecw Temperature Control Valve Not Fully Open
ENS 417802005-06-16T13:23:00016 June 2005 13:23:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
Both Rhr Lpci Divisions Inoperable Due to Valve Failure
ENS 402102003-10-01T00:50:0001 October 2003 00:50:00
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident, 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
Plant Shutdown Required by Technical Specifications Due to Inoperable Control Center Hvac
2024-03-23T04:04:00
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