Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 56912 | 3 January 2024 15:38:00 | At 1257 EST on January 3, 2024, it was determined that a class 1 system barrier had a through wall flaw with leakage. The leakage renders both trains of high pressure safety injection inoperable. The unit is being cooled down to cold shutdown to comply with technical specifications. This event is being reported pursuant to 10 CFR 50.72(b)(3)(ii)(A) and 10 CFR 50.72(b)(3)(v)(D). The NRC Resident Inspector has been notified. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officer Report Guidance: At the time of the discovery, the unit was shutdown in mode 3. The unit was experiencing signs of reactor coolant system leakage and a shutdown was initiated in order to search for possible sources. The unit is currently cooling down and proceeding to mode 5, where the safety function is not required.
The purpose of this notification update is to retract a portion of a previous report, made on 1/03/2024 at 1257 EST (EN 56912). Notification of the event to the NRC was initially made as a result of declaring both trains of unit 2 high pressure safety injection system inoperable due to reactor coolant barrier through wall leak on the vent line for the 2A2 safety injection tank. Subsequent to the initial report, Florida Power and Light has concluded that the through wall leak rate was insignificant, and therefore the safety injection system's safety-related function was maintained. Therefore, this portion of the event is not considered a safety system functional failure and is not reportable to the NRC pursuant 10 CFR 50.72(3)(v)(D). This update does not affect the original 10 CFR 50.72(b)(3)(ii)(A) report for the degraded condition related to the reactor coolant barrier through wall leak. The NRC Resident Inspector has been notified. Notified R2DO (Miller). |
| ENS 56297 | 5 January 2023 15:08:00 | The following information was provided by the South Carolina Department of Health and Environmental Control (the Department) via email: The South Carolina Department of Health and Environmental Control was notified via email at 1636 (EST) on 12/7/2022, that during a routine shutter check, a general licensed fixed gauging device was stuck in the closed position (fail-safe). The licensee reported that the general licensed fixed gauge device is a Kr-85 Thermo EGS Gauging Model SCL-77A (housing serial number 65675-2), with an activity of 37 gigabecquerels (1000 millicuries). Department inspectors were dispatched to the facility on 12/21/2022 to perform an on-site investigation. At the time of the visit, the licensee had already taken action by contacting a licensed vendor to repair the fixed gauge, and the gauge was placed back in service. The licensee also indicated that for the duration that the gauging device was stuck in the closed position, the production line was shut down, and the device was removed from service. Dose rate surveys of the fixed gauging device were performed by Department inspectors and indicated readings below the external radiation levels outlined in the sealed source and device registry. The South Carolina Department of Health and Environmental Control was also notified on 01/04/2023, that a separate general licensed fixed gauge device indicator had failed on 09/26/2022. The licensee reported that the general licensed fixed gauge device is a Sr-90 NDC Technologies Model 301 (housing serial number 8778), with an activity of 0.37 gigabecquerels (10 millicuries). The licensee reported the device has been repaired. South Carolina Event Report ID No: EN 56297
The following update was provided by the Department via email: The information for the sealed source housed in the Thermo EGS Gauging device model SCL-77A, serial number 65675-2, is as follows: Kr-85, Amersham Model No. KAC.D1 (serial number RH443). (NMED Item No. 230011) The indicator was repaired on the same day of the discovery of the failure by Pactiv Corporation. In order to complete the record, the Department has sent a request for additional information to the registrant to obtain the model and serial numbers for the sealed source housed in the Sr-90 NDC Technologies, Model 301 gauging device (serial number 8778). (NMED Item No. 230012) At this time, both (NMED) events are considered still under investigation. Notified R1DO (Lally) and NMSS Events Notification via email.
(NMED Item No. 230012) The model number of the Sr-90 sealed source housed in the NDC Technologies Model 301 gauging device is AEA Technology model number SIF.D1 (serial number NC406). Both events (NMED Item No. 230011 and NMED Item No. 230012) are now considered closed. Notified R1DO (Bickett) and NMSS Events Notification via email. |
| ENS 55954 | 21 June 2022 17:00:00 | The following was received from the Illinois Emergency Management Agency via email: Agency efforts to annually verify the inventory of registrant's generally licensed devices resulted in a declaration of loss by a registrant, Universal Scrap Metals, 9223657. Specifically, a Niton LLC, x-ray fluorescence analyzer (model XLp-818 PQ, serial number 9690), containing 30.0 mCi of Am-241 could not be located. The device was one of five, and the other four have been verified. On May 31, 2022 the registrant indicated they could not locate the device, but wanted to check several other departments before declaring it lost. The amount of americium present, although not representing a significant public safety concern, requires immediate reporting to the US NRC. The registrant failed to notify the Agency of disposal, transfer or loss. This matter will be (tracked until corrective action is provided.) Illinois Item Number: IL220021
The licensee provided new training for personnel and new procedures. The Illinois Emergency Management Agency closed the event. Notified R3DO (Hills). Notified via email: NMSS Event Notification and ILTAB. THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| ENS 55945 | 15 June 2022 18:04:00 | The following information was received from the State of Nevada via email: At approximately 1350 PDT, the RSO/CEO for IQC Southwest LLC, 00-11-0745-01 notified the Nevada Radiation Control Program (NRCP) that a Portable Nuclear Gauge (PNG) had been stolen from a work site located near the intersection of Sierra Vista and Paradise Road working off of Paradise Road in Las Vegas, Nevada. In addition, Las Vegas Metro Police Department was on scene and taking a report during the Radiation Safety Officers (RSO) notification call to the NRCP. The RSO stated that they had video of the theft as it occurred. An unknown (possibly transient) individual walked through the work site, picked up the gauge and walked off, appearing to hide the gauge with his body while the Authorized User (AU) was getting material from his vehicle. The source rod was not locked when the gauge was taken. The gauge was a Troxler model 4640-B with a 9 mCi Cs-137 source. An incident inspection will be performed June 16, 2022 by the NRCP. Nevada Item Number: NV220006 THIS MATERIAL EVENT CONTAINS A 'LESS THAN CAT 3' LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| ENS 55942 | 14 June 2022 15:57:00 | The following information was provided by the licensee via email: A licensed operator supervisor had a confirmed positive for alcohol during a random fitness-for-duty test. The employee's access to the plant is on hold in accordance with the licensee's fitness-for-duty policy. The NRC Senior Resident Inspector has been notified. |
| ENS 55862 | 27 April 2022 13:19:00 | The following is a summary of information received from the Colorado Department of Public Health and Environment by e-mail: The licensee reported a damaged Troxler 3430 portable moisture density gauge (SN:24886) containing Am-241/Be (SN:4721079) and Cs-137 (SN:757025) sources. The gauge fell out of the back of a truck onto an interstate highway while in transit. Pieces of the gauge are on the interstate as a result of vehicles running over the gauge and the licensee is attempting to retrieve them. The licensee intends to contact the police to help cordon off the affected area to support retrieval of the remaining pieces and conduct surveys. A search is ongoing and some of the pieces of the gauge have not been accounted for. CO Incident Number: CO220013 THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |
| ENS 55864 | 27 April 2022 17:10:00 | The following information was received from the Texas Department of State Health Services (the Agency) via e-mail: On April 27, 2022, the Agency received a notification from the licensee that the drive mechanism on their Theratronics T708C teletherapy device failed in the shielded position. The device contains 5,042 Curies of Co-60. The licensee stated that while starting a procedure at around 0915 hours CDT on April 27, 2022, the technician found that the source would not move out from the shield. There were no exposures as a result of this event. The licensee contacted a service company and scheduled a repair. An investigation is ongoing. TX Incident Number: I-9926 |
| ENS 55860 | 26 April 2022 18:35:00 | The following is a summary of an e-mail received from the Washington Office of Radiation Protection: At 1323 PDT, Washington State received a report of two leaking electron capture detectors (ECD). The detectors failed leak testing and were removed from service. The licensee is working with the vendor on additional corrective actions. There was no spread of contamination and no overexposure. The ECD contain Ni-63 sources (model number G2397A and G1223A / serial number U37921 and F5004) with an activity levels of 0.0144 microCuries and 0.009 microCuries. Incident Number: WA-22-011 |
| ENS 55853 | 22 April 2022 13:35:00 | The following information was provided by the licensee via email: At approximately 1300 EDT on April 21st, the New Hanover County Deputy Fire Marshal was notified that a roll up fire door located between a boiler room and the rad waste system malfunctioned in the open position. The door was approximately 3/4 closed. Compensatory measures were discussed with the Deputy Fire Marshall and then implemented. The door was repaired at approximately 1045 EDT on April 22nd. Because the New Hanover County Deputy Fire Marshall was notified, a concurrent notification to the NRC Operations Center is being made per 10 CFR 70, Appendix A(c). The licensee will notify the State and NRC Region II. |
| ENS 55851 | 20 April 2022 11:49:00 | The following was received from the Pennsylvania Bureau of Radiation Protection by e-mail: On April 18, 2022, a patient underwent a Y-90 SIR-Sphere treatment. The prescribed dosage was 7.07 milliCuries, however only 5.27 milliCuries was able to be delivered, or 74.5 percent. The apparent cause is that the blood vessel the catheter was placed in had a complicated vasculature which inhibited the flow of the spheres. No harm is expected to the patient. The referring physician and the patient have been informed. Event Report ID Number: PA220014 A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient. |
| ENS 55852 | 20 April 2022 14:09:00 | The following was received from the Ohio Bureau of Radiation Protection by e-mail: On 4/18/22, a patient was scheduled to receive 120 Gy to the right hepatic lobe of the liver (involving Y-90 TheraSpheres), however only 94.2 Gy was delivered, resulting in an underdose of 21.5 percent. The (authorized user) notified the (Radiation Safety Officer) on 4/19/22. Stasis was not reached and at this time no cause was identified. Item Number: OH220006 A Medical Event may indicate potential problems in a medical facility's use of radioactive materials. It does not necessarily result in harm to the patient. |
| ENS 55844 | 15 April 2022 11:31:00 | The following information was provided by the licensee via email: On April 15, 2022 at 1000 hours (EDT), four off-site notifications were made to the Commonwealth of Massachusetts Department of Environmental ÿProtection (MADEP) in accordance with the Massachusetts Contingency Plan (310 CMR 40.0000). ÿThe notifications document non-radiological contaminants found slightly above reportable concentrations in select soil and groundwater samples collected during site characterization efforts, as part of the decommissioning process, from four parcels of land at the property.ÿ ÿReportable concentrations in soil were identified in a composite sample for Polychlorinated Biphenyls (PCBs). ÿReportable concentrations in groundwater were identified in samples for per- and polyfluoroalkyl substances (PFAS) and Semi Volatile Organic Compound (SVOC). Additionally, the reports include sample results where laboratory reporting limits equaled or exceeded reporting thresholds. This notification is being made solely as a four-hour, non-emergency notification for a Notification of Other Government Agency in accordance with 10 CFR 50.72(b)(2)(xi).ÿ There was no impact on the health and safety of the public or plant personnel. The NRC Lead Decommissioning Inspector and NMSS Project Manager assigned to Pilgrim have been notified. |
| ENS 55845 | 15 April 2022 14:50:00 | The following was received from the Commonwealth of Virginia via email: On April 14, 2022 at 2249 hours EDT, the Office of Radiological Health Radioactive Materials Program (ORH) received an incident report from the licensee, Huntington Ingalls Incorporated Newport News Shipbuilding. The source, 79 curies of Ir-192, could not be retracted to its shielded position during radiographic work. The incident occurred on April 14, 2022 at about 1103, while a radiographic work was being performed in a permanent radiography booth to inspect a pipe for use upon a naval vessel at Newport News Shipbuilding. The incident occurred because the metal pipe fell off of the metal sawhorse, crushing the source tube and preventing full retraction back into the shielded position. The root cause of the pipe falling off of the sawhorse has yet to be determined. The radiography crew immediately closed the permanent radiography booth, took radiation surveys to ensure that with the door closed the radiation levels were below 2 mR/hr, and notified the Radiation Safety Officer (RSO). The site was supervised by the radiography crew constantly between the time of the incident until the source was retracted at approximately 1310 on April 15, 2022. The highest exposure of the crew from the pocket dosimeters was 5.5 mrem. In addition, the whole body dosimeters were sent to the licensee's internal dosimetry program for analysis. The results are not yet available. The RMP Southeast regional inspector responded to the incident and performed radiation safety assessment at the event site. Virginia Event Report ID Number: VA220001 |
| ENS 55895 | 13 May 2022 13:46:00 | The following information was received from the South Carolina Department of Health and Environmental Control (The Department) via e-mail: On April 13, 2022, at approximately 1400 EDT, the Department was notified by the licensee that it possibly received two samples that contained Tritium (H-3) that if logged in would have exceeded the license possession limit. The licensee receives samples from various customers for analysis to determine the amount of radioactivity that may be present in the sample. The two samples (drums) contained 50 pounds of concrete cores. These samples were believed to contain 1.57 E4 milliCuries of Tritium. Due to the potential elevated level of Tritium in the samples, the drums were never unpacked, were re-sealed, and returned to the client. The client submitted information indicated that each sample (drum) contained approximately 346 microCuries/gram of Tritium. The licensee calculated that the activity of each sample contained 7.85 Curies of Tritium and totaled 15.7 Curies for both samples. The licensee has submitted the required 30-day written report on May 12, 2022. |
| ENS 55839 | 12 April 2022 16:37:00 | The following information was received from the Texas Department of State Health Services (the Agency) via E-mail: On April 12, 2022, the Agency received an email from a licensee regarding an Am-241 source that was no longer within the source holder of a Troxler Model 3430 (source assay date 9/29/1997 and serial 28367). The source capsule, source holder, and source cap were all loose within the gauge. This was the first notification to this Agency of this issue. The licensee reported that on March 25, 2022, a licensee technician reported measurement issues with this device. A survey of the device did not find any elevated readings. The device was pulled from service and inspected on March 30, 2022, at which point the loose components were discovered. This licensee had experience with this issue before (see EN 55774) and repaired the assembly using Loctite. Licensee reports the source is not leaking and is secured within the source holder. Investigation is ongoing and additional information will be provided per SA-300. Texas Incident Number: I-9925 |