Semantic search
| Entered date | Event description | |
|---|---|---|
| ENS 52280 | 4 October 2016 23:18:00 | A Hurricane Warning is in effect for St. Lucie County including the Plant Site. A Hurricane Warning was issued by the National Weather Service at 2250 (EDT). St. Lucie Nuclear Power Plant entered an Unusual Event Classification for the Hurricane Warning. State and local officials have been notified by the licensee. The NRC Resident Inspector was notified of this by the licensee. This report is submitted in accordance with 10CFR50.72(a)(1)(i) due to the Notice of Unusual Event and 10CFR50.72(b)(2)(xi) due to the Offsite Notification. Notified DHS SWO, FEMA OPS Center, FEMA National Watch (email only), DHS NICC, Nuclear SSA (email only).
The Hurricane Warning was downgraded to a Tropical Storm Warning by the National Weather Service for St. Lucie County including the Plant Site. At time 1044 (EDT) on 10/7/16, St. Lucie Nuclear Power Plant has terminated from the Unusual Event Classification. The licensee notified the NRC Resident Inspector, State and local authorities. Notified R2 (Jones) NRR EO (King), IRD (Grant), R2DO (Bonser), DHS SWO, FEMA OPS Center, FEMA National Watch (email only), DHS NICC, Nuclear SSA (email only). |
| ENS 50952 | 3 April 2015 14:17:00 | On April 3, 2015, at 1500 EDT, the Control Room Emergency Ventilation System on St. Lucie Unit 1 will be declared inoperable due to pre-planned maintenance during the current refueling outage. The Technical Support Center (TSC) ventilation system is part of the Unit 1 Control Room Emergency Ventilation System, therefore, the TSC ventilation system has been rendered non-functional during the course of the work activities. The TSC ventilation is expected to be returned to service in approximately 24 hours. If an emergency is declared requiring TSC activation during this period, the TSC will be staffed and activated using existing emergency planning procedures. Should the TSC become uninhabitable, the TSC staff will relocate to an alternate TSC location in accordance with applicable site procedures. This notification is being made in accordance with 10 CFR 50.72 (b)(3)(xiii) due to the potential loss of an emergency response facility. An update will be provided once the TSC ventilation system has been restored to normal operation. The NRC Resident Inspector has been notified.
The TSC ventilation system has been restored to normal operation as of 2230 EDT on April 3, 2015. The NRC Resident Inspector has been notified. Notified R2DO (Walker). |
| ENS 50782 | 2 February 2015 16:54:00 | At 2/2/15, at approximately 0919 EST, a non-licensed employee supervisor had a confirmed positive for alcohol during a random fitness-for-duty test. Due to the confirmed positive test, the employee's access to the plant has been revoked. The NRC Resident Inspector has been informed. |
| ENS 48388 | 8 October 2012 02:37:00 | On October 7, 2012, with Unit 2 in a defueled condition, a differential current lockout occurred on the 2B3 4.16kV essential bus, causing a deenergization of the 2B3 4.16kV essential bus. At the time of the event, the 2B Emergency Diesel Generator (EDG) was loaded to the essential bus. Due to the differential current lockout, all bus loads were lost and the 2B EDG output breaker feeding the essential bus opened and the 2B EDG transferred to emergency mode. The 2A EDG is operable and in standby. All equipment responded as expected. The plant is currently being maintained in a defueled condition. Decay heat removal is being supplied by the 2A Fuel Pool Cooling train. The cause of the differential current lockout of the 2B3 4.16kv bus is under investigation. This event is reportable pursuant to 10CFR 50.72(b)(3)(iv)(A). The licensee notified the NRC Resident Inspector. |
| ENS 43755 | 29 October 2007 12:03:00 | This notification is being made due to a planned loss of (Emergency Response Data Acquisition Display System) (ERDADS). Maintenance will be replacing a bad disc drive for the 'B' Plant Environmental Data System (PEDS) and utilizing the 'A' PEDS for restoration of software. Estimated (time for) return to service is by the end of the business day (1700) (10/29/07). The licensee notified the NRC Resident Inspector. |