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 Start dateSiteTitleReporting criterionSystemTopic
ENS 5601323 July 2022 00:49:00Wolf CreekAuxiliary Feedwater Actuation Signal Received Due to Human Performance Error10 CFR 50.72(b)(3)(iv)(A), System ActuationFeedwater
Auxiliary Feedwater
ENS 559308 June 2022 01:00:00Louisiana Energy ServicesUF6 Leakage Inside AutoclavePart 70 App A (A)(4)
ENS 5587129 April 2022 16:51:00FitzPatrickHigh Pressure Coolant Injection (HPCI) Inoperable10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentHigh Pressure Coolant InjectionTime of Discovery
ENS 5586629 April 2022 03:55:00SequoyahNotice of Unusual Event10 CFR 50.72(a)(1)(i), Emergency Class DeclarationOperating Basis Earthquake
ENS 558317 April 2022 23:00:00Turkey PointBoth Trains of Residual Heat Removal Inoperable10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual HeatResidual Heat Removal
ENS 5578512 March 2022 05:50:00Turkey PointMain Steam Isolation Valve Failed to Shut10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentMain Steam Isolation Valve
ENS 5578010 March 2022 01:13:00BrunswickHigh Pressure Coolant Injection (HPCI) Inoperable10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentHigh Pressure Coolant Injection
Reactor Core Isolation Cooling
Automatic Depressurization System
ENS 557759 March 2022 00:19:00Davis BesseFITNESS-FOR-DUTY Report - Contract Supervisor Failed FITNESS-FOR-DUTY Test10 CFR 26.719
ENS 557707 March 2022 17:45:00Louisiana Energy ServicesItem Relied on for Safety (IROFS) InoperablePart 70 App A (A)(4)
ENS 5571527 January 2022 16:38:00CooperLoss of Meteorlogical Data Acquisition System10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
ENS 556821 January 2022 17:10:00ColumbiaHigh Pressure Core Spray System Declared Inoperable10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentService water
Reactor Core Isolation Cooling
High Pressure Core Spray
ENS 5567422 December 2021 17:45:00HarrisLoss of Siren System10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness
ENS 5565215 December 2021 21:38:00U.S. Air ForceLeaking Source from Aircraft Radium Dial10 CFR 30.50(b)(2)
ENS 5564314 December 2021 16:00:00Monument HealthNON-AGREEMENT State Report - Medical Underdose10 CFR 35.3045(a)(1)
ENS 5561730 November 2021 05:00:00Sentara Norfolk General HospitalUnderdose of Patient Medical EventAgreement State
ENS 5560419 November 2021 06:00:00Dak Americas MississippiStuck ShutterAgreement StateStolen
ENS 5557412 November 2021 21:05:00Turkey PointReactor Coolant System Pressure Boundary Degraded10 CFR 50.72(b)(3)(ii)(A), Seriously DegradedReactor Coolant SystemThrough-Wall Leak
ENS 555645 November 2021 18:07:00Louisiana Energy ServicesLoss of High Radiation Audible Alarm10 CFR 70.50(b)(2)
ENS 5552918 October 2021 00:30:00Prairie IslandEmergency Diesel Generators Simultaneously Inoperable10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentEmergency Diesel Generator
ENS 5552214 October 2021 17:20:00FermiTraversing IN-CORE Probe a Ball Valve Inoperable10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive MaterialPrimary containment
ENS 5545712 September 2021 21:28:00North AnnaDegraded Condition Identified While Unit Shutdown10 CFR 50.72(b)(3)(ii)(A), Seriously DegradedReactor Coolant SystemPressure Boundary Leakage
ENS 554508 September 2021 17:37:00SummerNotification of Environmental Report to Another Government Agency10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
ENS 5542421 August 2021 20:00:00Oregon Health And Science UniversityPrescribed Dose ExceededAgreement State
ENS 5542120 August 2021 13:05:00SequoyahAuxiliary Building Gas Treatment Systems Inoperable10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive MaterialSecondary containment
Auxiliary Building Gas Treatment System
Time of Discovery
Past operability
ENS 5540311 August 2021 10:34:00FermiHPCI Inoperability10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentHigh Pressure Coolant Injection
Reactor Pressure Vessel
ENS 5538830 July 2021 17:05:00Rodriguez Sun GroupDamaged Instrotek Moisture Density Gauge10 CFR 30.50(b)(2)Moisture Density Gauge
ENS 5532624 June 2021 22:00:00Curium PharmaUnplanned Contamination to an Individual10 CFR 30.50(a)Deep Dose Equivalent
ENS 5530311 June 2021 21:10:00HatchTechnical Specificiation Required Shutdown10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown
ENS 5528428 May 2021 20:00:00Iris NdtPotential Overexposure to RadiographerAgreement State
ENS 5526117 May 2021 16:38:00Peach BottomUnusual Event Due to a Fire Alarm Inside the Drywell10 CFR 50.72(a)(1)(i), Emergency Class Declaration
ENS 5525712 May 2021 00:00:00University Of California DavisOverdose and Wrong Treatment SiteAgreement State
ENS 5524510 May 2021 12:30:00Va Pittsburgh Healthcare SystemMedical Event - Patient Underdose10 CFR 35.3045(a)(1)
ENS 552867 April 2021 05:00:00Spencer Municipal HospitalMedical EventAgreement State
ENS 551726 April 2021 01:49:00PerryManual Reactor Protection System (Rps) Actuation at Zero Percent Power10 CFR 50.72(b)(3)(iv)(A), System ActuationReactor Protection System
Control Rod
ENS 551704 April 2021 15:30:00Good Samaritan HospitalPatient Receives Wrong Dose10 CFR 35.3045(a)(1)
ENS 5514518 March 2021 06:00:00Sanford Medical CenterMedical Event (Incorrect Dose Location)Agreement State
ENS 551298 March 2021 16:27:00Suspected Tech Spec Power Limit ExceededNon
ENS 5508022 January 2021 00:07:00Curium Uspet LlcLow Level Contamination of Future Production Area10 CFR 30.50(b)(1)
ENS 5506211 January 2021 06:00:00Church Of Jesus Christ Latter Day SaintsTwo Missing Tritium Exit SignsAgreement StateTritium Exit Sign
Tritium
Moisture Density Gauge
ENS 551266 January 2021 06:00:00Crane Nuclear, Inc.Interim Part 21 Report - Weld Procedures Do Not Meet Asme Code10 CFR 21.21(d)(3)(i), Failure to Comply or Defect
ENS 5503614 December 2020 17:40:00Turkey PointCharging Pump and Boration Flowpaths Simultaneously Inoperable10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the ReactorPast operability
ENS 550213 December 2020 05:00:00Inova Fairfax Medical CampusMedical Event Report - UnderdosageAgreement State
ENS 549835 November 2020 03:50:00Browns FerryHigh Pressure Coolant Injection Inoperable10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentHigh Pressure Coolant InjectionTime of Discovery
ENS 549793 November 2020 05:11:00Calvert CliffsBoth Trains of Salt Water Inoperable10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor
ENS 5496928 October 2020 16:00:00Spectrum HealthIodine-125 Seed Inadvertently Left in Patient10 CFR 35.3045(a)(1)
ENS 5496020 October 2020 04:00:00Hillis-Carnes Engineering Associates, Inc.Damaged GaugeAgreement StateTroxler
ENS 5495419 October 2020 04:13:00Arkansas NuclearControl Room Envelope Inoperable10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an AccidentMission time
Temporary Modification
ENS 549388 October 2020 16:25:00MonticelloNotification of an Unusual Event10 CFR 50.72(a)(1)(i), Emergency Class Declaration
ENS 548814 September 2020 04:00:00Eli Lilly Company Manufacturers 10 CFR 20.2201(a)(1)(ii)Tritium Exit Sign
Moisture Density Gauge
ENS 5486226 August 2020 05:00:00Texas Department of State Health ServicesAgreement State