ENS 57245 | 23 July 2024 18:00:00 | Browns Ferry | Part 21 - HPCI Rupture Disc Not within Technical Requirements | 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | | |
ENS 57210 | 3 July 2024 04:00:00 | Hospital Of The University Of Pennsylvania | Patient Underdose | Agreement State | | Underdose |
ENS 57181 | 18 June 2024 20:40:00 | Perry | Inoperability of Division 3 Diesel Generator Supporting High Pressure Core Spray | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | High Pressure Core Spray Emergency Core Cooling System | |
ENS 57177 | 18 June 2024 07:17:00 | Saint Lucie | Manual Reactor Trip | 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation | Auxiliary Feedwater | |
ENS 57171 | 12 June 2024 21:00:00 | Avera McKennan Hospital | Medical Event - LUTETIUM-177 Misadministration | 10 CFR 35.3045(a)(1) | | |
ENS 57252 | 7 June 2024 06:46:00 | River Bend | Control Room Envelope Failed Surveillance | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | Control Room Emergency Ventilation Control Room Envelope | |
ENS 57146 | 26 May 2024 12:20:00 | South Texas | Two of Three Essential Chilled Water Trains Declared Inoperable | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | HVAC Containment Spray | Time of Discovery Through Wall Leak |
ENS 57120 | 9 May 2024 20:29:00 | FitzPatrick | High Pressure Coolant Injection Inoperable | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | High Pressure Coolant Injection | Through-Wall Leak |
ENS 57098 | 30 April 2024 05:00:00 | Advocate Illinois | Overexposure to an Embryo / Fetus | Agreement State | | Overexposure |
ENS 57061 | 2 April 2024 05:45:00 | Louisiana Energy Services | Item Relied on for Safety (Irofs) Inoperable | Part 70 App A (A)(4) | | |
ENS 57062 | 1 April 2024 04:00:00 | Piedmont Cartersville Medical Ctr. | Received Dose Less than Prescribed | Agreement State | | Brachytherapy |
ENS 57042 | 22 March 2024 04:37:00 | Waterford | Notification of Unusual Event Due to Fire in the Protected Area | 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation 10 CFR 50.72(a)(1)(i), Emergency Class Declaration 10 CFR 50.72(b)(3)(iv)(A), System Actuation | Feedwater Reactor Protection System Emergency Diesel Generator Main Transformer Emergency Core Cooling System Decay Heat Removal Main Condenser Control Rod | |
ENS 57043 | 22 March 2024 01:56:00 | Callaway | Automatic Turbine Driven Auxiliary Feedwater Pump Actuation | 10 CFR 50.72(b)(3)(iv)(A), System Actuation | Auxiliary Feedwater | |
ENS 57037 | 18 March 2024 05:00:00 | Mercyone Des Moines Medical Center | Dose to Unplanned Site | Agreement State | | Brachytherapy |
ENS 57026 | 13 March 2024 01:11:00 | Catawba | Loss of Power to Containment Radiation Monitors | 10 CFR 50.72(b)(3)(iv)(A), System Actuation | | |
ENS 57012 | 6 March 2024 12:00:00 | Curium Us Llc | Contamination in Restricted Area | 10 CFR 30.50(b)(1) 10 CFR 20.2202(b)(2) | | |
ENS 56980 | 19 February 2024 15:45:00 | Peach Bottom | Loss of Reactor Building Ventilation | 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | Secondary containment Reactor Building Ventilation Standby Gas Treatment System | |
ENS 56978 | 19 February 2024 07:36:00 | Summer | Automatic Start of B Emergency Diesel Generator | 10 CFR 50.72(b)(3)(iv)(A), System Actuation | Feedwater Emergency Diesel Generator | |
ENS 56970 | 16 February 2024 03:24:00 | Watts Bar | Actuation of Emergency Diesel Generator System | 10 CFR 50.72(b)(3)(iv)(A), System Actuation | Emergency Diesel Generator | |
ENS 56965 | 14 February 2024 16:10:00 | Trinity Health Of New England Medical Group - Ghc Nuclear | Medical Event - Dose Misadministration | 10 CFR 35.3045(a)(3) | | |
ENS 56945 | 1 February 2024 22:00:00 | Ascension Providence Hospital | Medical Event - Overdose | 10 CFR 35.3045(a)(1) | | TheraSphere Overdose |
ENS 56941 | 1 February 2024 18:17:00 | Browns Ferry | Offsite Notification - Workplace Injury | 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | | |
ENS 56928 | 18 January 2024 20:04:00 | Columbia | Residual Heat Removal Degraded Due to Service Water Leakage | 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 | Service water Residual Heat Removal Spray Pond | Unanalyzed Condition Ultimate heat sink Mission time |
ENS 56916 | 8 January 2024 07:00:00 | St Luke'S Regional Medical Center | Medical Event - Y-90 Underdose | 10 CFR 35.3045(a)(1) | | TheraSphere Underdose |
ENS 56915 | 5 January 2024 15:40:00 | Davis Besse | Emergency Ventilation Systems Inoperable | 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 | Shield Building | |
ENS 56892 | 15 December 2023 11:52:00 | Jan X-Ray Services, Inc. | NON-AGREEMENT State - Possible Exposure Above Limit (TEDE ≫ 5 Rem) | 10 CFR 20.2202(b)(1) | | |
ENS 56866 | 20 November 2023 15:56:00 | Dresden | Hpci Declared Inoperable | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | High Pressure Coolant Injection Emergency Core Cooling System | |
ENS 56862 | 17 November 2023 16:00:00 | Up Health Systems Marquette | Medical Event - Y-90 Potential Underdose | 10 CFR 35.3045(a)(1) | | Underdose |
ENS 56859 | 16 November 2023 13:00:00 | Cleveland Cliffs Steel Corporation | NON-AGREEMENT State Report - Failed Indicating Light | 10 CFR 30.50(b)(2) | | |
ENS 56849 | 10 November 2023 21:45:00 | Waterford | Unanalyzed Condition | 10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition | | Unanalyzed Condition |
ENS 56829 | 2 November 2023 12:15:00 | Point Beach | False Negative and Positive on Blind Performance Sample | 10 CFR 26.719, FFD Reporting requirements | | Blind Performance Test |
ENS 56825 | 31 October 2023 13:00:00 | River Bend | False Negative on Blind Performance Sample | 10 CFR 26.719, FFD Reporting requirements | | Blind Performance Test |
ENS 56809 | 21 October 2023 13:07:00 | Watts Bar | Notification of Unusual Event Declared | 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | | Fire Watch |
ENS 56733 | 11 September 2023 00:00:00 | Archer Daniels Midland Company | Fire at Facility Containing Radioactive Gauges | Agreement State | | |
ENS 56726 | 7 September 2023 21:15:00 | Tierra Inc. | Agreement State - Lost and Recovered Troxler Gauge | Agreement State | | Moisture Density Gauge Troxler Troxler Gauge |
ENS 56686 | 17 August 2023 04:00:00 | West Virginia University Hospital | Medical Event - Patient Underdose | 10 CFR 35.3045(a)(1) | | Underdose Thera Sphere |
ENS 56644 | 30 July 2023 16:19:00 | Waterford | Control Room Envelope Inoperable | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | Control Room Envelope | Operability Determination |
ENS 56637 | 25 July 2023 13:24:00 | Millstone | Control Room Envelope Inoperable | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | Control Room Emergency Ventilation Control Room Envelope | |
ENS 56638 | 24 July 2023 15:00:00 | Christiana Care Health System | Medical Event - Dose to Unintended Organ | 10 CFR 35.3045(a)(3) | | |
ENS 56620 | 12 July 2023 08:49:00 | Millstone | ECCS Potentially Inoperable | 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat | Service water Emergency Core Cooling System | Time of Discovery |
ENS 56600 | 26 June 2023 17:00:00 | Uhs Of Oklahoma, Llc | Medical Misadministration | Agreement State | | |
ENS 56570 | 13 June 2023 03:33:00 | Fermi | Accident Mitigation - High Pressure Coolant Injection Declared Inoperable | 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | High Pressure Coolant Injection Emergency Diesel Generator Emergency Equipment Cooling Water | Ultimate heat sink Mission time |
ENS 56556 | 2 June 2023 18:30:00 | Seabrook | FITNESS-FOR-DUTY Report | 10 CFR 26.719, FFD Reporting requirements | | |
ENS 56520 | 16 May 2023 16:27:00 | Wolf Creek | Emergency Exhaust Inoperable | 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 | | |
ENS 56762 | 8 May 2023 06:00:00 | Construction Materials Technologies, Llc | Agreement State - Damaged Gauge | Agreement State | | |
ENS 56512 | 8 May 2023 04:00:00 | Henry Ford Hospital | Potential Medical Event | 10 CFR 35.3045(a)(2) | | TheraSphere |
ENS 56501 | 2 May 2023 19:00:00 | Palisades | Loss of Communications | 10 CFR 50.72(b)(3)(xiii), Loss of Emergency Preparedness | | |
ENS 56481 | 19 April 2023 17:30:00 | Southern Arizona Va Health Care | Medical Event - Patient Underdose | 10 CFR 35.3045(a)(1) | | Brachytherapy TheraSphere Underdose |
ENS 56480 | 18 April 2023 21:30:00 | Comanche Peak | Safe Shutdown Capability and Accident Mitigation | 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 | Emergency Core Cooling System Containment Spray | Safe Shutdown Time of Discovery Operability Determination |
ENS 56411 | 15 March 2023 03:57:00 | Browns Ferry | Reactor Coolant System (RCS) Boundary Degraded Condition | 10 CFR 50.72(b)(3)(ii)(A), Seriously Degraded | Reactor Coolant System Main Steam | |