Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 54355 | 27 October 2019 22:36:00 | On October 27, 2019, at 1605 CDT, the Control Room Emergency Ventilation (CREV) was declared inoperable due to finding water in the system's Air Filtration Unit (AFU) filter enclosure. Technical Specification 3.7.4, Condition A, was entered which requires the CREV system to be restored to an operable status in seven days. No other systems were out of service at the time this was declared inoperable. The CREV system maintains a habitable control room environment and ensures the operability of components in the control room emergency zone during accident conditions. This notification is being made in accordance with 10 CFR 50.72(b)(3)(v)(D), "Event or Condition That Could Have Prevented Fulfillment of a Safety Function," because the CREV system is a single train system required to mitigate the consequences of an accident. The licensee has notified the NRC Resident Inspector. |
| ENS 52527 | 1 February 2017 21:22:00 | On February 1, 2017, at 1929 hours (CST), a fire was discovered on the Unit 2 Main Control Room panel 902-3 in the 3E ERV/ADS valve switch. A reactor SCRAM was not required. No automatic isolations/actuations occurred. The fire was extinguished at 1932 and the reactor remained at 100% power. An Alert was declared at 1938 (CST). The initiation of the event was attempting to change a light bulb. The cause of the event is under investigation. The Senior Resident Inspector has been notified of the event. The licensee entered a 14 day Technical Specification Action statement as a result of the damage to the switch. Notified DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA, NNSA (e-mail), and NRCC SASC (e-mail).
Notified that the Alert was terminated at 2336 CST on 2/1/17. The licensee stated that the fire was extinguished and an extent of condition walkdown did not identify any additional equipment damage as a result of the fire. The licensee will be issuing a press release. The licensee will be notifying the NRC Resident Inspector. Notified the R3DO (Duncan), IRD MOC (Gott), NRR EO (Miller), DHS SWO, DOE, FEMA, HHS, NICC, USDA, EPA, FDA, NNSA (e-mail), and NRCC SASC (e-mail). |