WEEKMONTHYEARENS 580122025-10-28T23:04:00028 October 2025 23:04:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation
RPS Actuation and Offsite Notification
ENS 578222025-07-22T19:10:00022 July 2025 19:10:00
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)(2)(iv)(A), System Actuation - ECCS Discharge
Manual Reactor Scram
ENS 568462023-11-10T08:14:00010 November 2023 08:14:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Reactor Scram
ENS 564302023-03-23T21:36:00023 March 2023 21:36:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Emergency Diesel Generator Actuation
ENS 559092022-05-23T21:16:00023 May 2022 21:16:00
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)(2)(iv)(A), System Actuation - ECCS Discharge
Automatic Reactor Scram
ENS 556162021-11-30T17:54:00030 November 2021 17:54:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Unit 1 Automatic Scram
ENS 555142021-10-11T17:21:00011 October 2021 17:21:00
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)(2)(iv)(A), System Actuation - ECCS Discharge
Automatic Reactor Scram After Main Turbine Trip
ENS 553702021-07-21T22:26:00021 July 2021 22:26:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation
Automatic Reactor SCRAM
ENS 546912020-05-03T12:21:0003 May 2020 12:21:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation
Automatic Reactor Scram Due to Main Turbine Trip
ENS 545252020-02-14T05:25:00014 February 2020 05:25:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation
Manual Reactor Scram Due to Rising Condenser Backpressure
ENS 541372019-06-27T13:37:00027 June 2019 13:37:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Loss of Power Resulted in a Valid Isolation Signal
ENS 527952017-06-08T19:27:0008 June 2017 19:27:00
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, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge
Automatic Reactor Scram After Main Turbine Control Logic Loss of Power
ENS 519252016-05-13T05:10:00013 May 2016 05:10:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge, 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material
Manual Reactor Scram Due After Loss of an Essential Motor Control Center
ENS 518382016-03-31T10:03:00031 March 2016 10:03:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Valid Isolation Signal Due to a Human Performance Error
ENS 515322015-11-12T16:32:00012 November 2015 16:32:00
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 509732015-04-11T03:46:00011 April 2015 03:46:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram Caused by Main Turbine Trip Due to Degrading Main Condenser Vacuum
ENS 493422013-09-14T07:30:00014 September 2013 07:30:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Reactor Scram Due to Feedwater Transient During Shutdown
ENS 490992013-06-07T16:03:0007 June 2013 16:03:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Scram Due to a Reactor Water Level Transient During Startup
ENS 486072012-12-19T22:31:00019 December 2012 22:31:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Automatic Reactor Scram Due to Low Reactor Pressure Vessel Level
ENS 485982012-12-16T06:56:00016 December 2012 06:56:00
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)(2)(iv)(A), System Actuation - ECCS Discharge
Reactor Scram from 98% Power During Turbine Control Valve Testing
ENS 485002012-11-09T09:20:0009 November 2012 09:20:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Rps Actuation Resulting from Low Reactor Water Level
ENS 484962012-11-09T06:18:0009 November 2012 06:18:00
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)(2)(iv)(A), System Actuation - ECCS Discharge
Unit 2 Manual Scram Due to Loss of the Integrated Control System
ENS 480552012-06-28T17:53:00028 June 2012 17:53:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Loss of One of Two Offsite Power Sources
ENS 471722011-08-19T14:46:00019 August 2011 14:46:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Reactor Scram During Quarterly Surveillance Test
ENS 465692011-01-25T11:10:00025 January 2011 11:10:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Reactor Scram Due to an Unisolable Extraction Steam System Leak
ENS 461032010-07-16T20:41:00016 July 2010 20:41:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Scram Due to Unisolable Circulating Water System Leak
ENS 459302010-05-15T03:01:00015 May 2010 03:01:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Reactor Scram Due to Increasing Reactor Water Level
ENS 458662010-04-22T14:51:00022 April 2010 14:51:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Reactor Scram on Low Reactor Vessel Water Level During Feedwater Integrated Control System Testing
ENS 430112006-11-26T01:42:00026 November 2006 01:42:00
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
Reactor Scram from Full Power Due to Generator Load Reject
ENS 426422006-06-15T07:00:00015 June 2006 07:00:00
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, 10 CFR 50.72(b)(2)(iv)(A), System Actuation - ECCS Discharge
Reactor Scram While Shifting Power Supplies
ENS 417462005-06-06T16:33:0006 June 2005 16:33:00
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 Apparent Generator Load Rejection
ENS 416462005-04-28T11:19:00028 April 2005 11:19:00
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
Unit 2 Manual Reactor Scram Due to Loss of Main Transformer Cooling
ENS 406952004-04-21T20:35:00021 April 2004 20:35:00
10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation
Manual Reactor Scram in Response to High Main Turbine Vibration During Startup
ENS 405742004-03-07T07:01:0007 March 2004 07:01:00
10 CFR 50.72(b)(3)(iv)(A), System Actuation
Start of the "a" Emergency Diesel Generator During Emergency Service Supply Bus Outage
ENS 401962003-09-24T04:53:00024 September 2003 04:53:00
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)(2)(iv)(A), System Actuation - ECCS Discharge
Automatic Scram at Susquehanna on Low Water Level
2025-07-22T19:10:00
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