WEEKMONTHYEARENS 578322025-07-29T01:58:00029 July 2025 01:58:00
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)(v)(C), Loss of Safety Function - Release of Radioactive Material
Manual Reactor Scram
ENS 576182025-03-19T16:36:00019 March 2025 16:36:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram
ENS 569952024-02-28T14:39:00028 February 2024 14:39:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram
ENS 567592023-09-27T15:41:00027 September 2023 15:41:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Actuation of Reactor Protection and Containment Isolation Systems
ENS 526822017-04-15T09:41:00015 April 2017 09:41:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Valid Reactor Protection System and Partial Primary Containment Isolation System Actuations on Low Water Level
ENS 515602015-11-23T16:40:00023 November 2015 16:40:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Reactor Scram Due to a Reactor Recirculation Pump Lockout
ENS 491132013-06-13T19:30:00013 June 2013 19:30:00
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)(iv)(A), System Actuation, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Emergency Diesel Generators Start
ENS 490662013-05-24T08:34:00024 May 2013 08:34:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Start of Emergency Diesel Generator Due to Bus Undervoltage
ENS 485032012-11-12T21:51:00012 November 2012 21:51:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Reactor Building Isolation with Standby Gas Treatment System Actuation During Radioactive Material Move
ENS 483412012-09-25T15:44:00025 September 2012 15:44:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram During Maintenance on 4160V Bus 12 Ammeter
ENS 474602011-11-20T05:12:00020 November 2011 05:12:00
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram While Performing Turbine Bypass Valve Testing
ENS 473642011-10-21T17:50:00021 October 2011 17:50:00
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram Due to Lockout of Auxiliary Power Transformer
ENS 464962010-12-20T09:57:00020 December 2010 09:57:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Fuel Pool/Reactor Building Exhaust Plenum Primary Power Supply Failed
ENS 445082008-09-21T02:35:00021 September 2008 02:35:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Unplanned Loss of Shutdown Cooling Due to Containment Isolation
ENS 444982008-09-17T15:17:00017 September 2008 15:17:00
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Unusual Event Due to Loss of Shutdown Cooling
ENS 444842008-09-12T03:47:00012 September 2008 03:47:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Reactor Scram and Isolation Due to Transformer Lockout
ENS 432462007-03-18T04:46:00018 March 2007 04:46:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Rps Trip Signal and Containment Isolations Received During Maintenance
ENS 430882007-01-10T21:28:00010 January 2007 21:28:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Reactor Scram with Stuck Open Main Turbine Control Valves
ENS 414412005-02-25T03:11:00025 February 2005 03:11:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Esf Actuation Following Trip of Reactor Protection Motor-Generator Set
ENS 414362005-02-23T18:00:00023 February 2005 18:00:00
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)(ii)(B), Unanalyzed Condition, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Potential Vulnerability with Alternate Shutdown System (Asds) Isolation Design.
2025-07-29T01:58:00
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