ENS 56058: Difference between revisions
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| emergency class = Non Emergency | | emergency class = Non Emergency | ||
| notification date = 08/19/2022 20:46 | | notification date = 08/19/2022 20:46 | ||
| retracted = Yes | |||
| notification by = Paul Lyne | | notification by = Paul Lyne | ||
| NRC officer = Donald Norwood | | NRC officer = Donald Norwood | ||
| event date = 08/19/2022 12:15 CDT | | event date = 08/19/2022 12:15 CDT | ||
| last update date = | | last update date = 10/17/2022 | ||
| title = Four Automatic Depressurization System Valves Inoperable | | title = Four Automatic Depressurization System Valves Inoperable | ||
| event text = The following information was provided by the licensee via email: | | event text = The following information was provided by the licensee via email: | ||
| Line 22: | Line 23: | ||
There were no other systems affected as a result of this condition. | There were no other systems affected as a result of this condition. | ||
The NRC Senior Resident Inspector was notified. | The NRC Senior Resident Inspector was notified. | ||
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: Plans are to remain in Mode 1 until corrected or until driven by the Technical Specifications to shut down (12-hour LCO from 1215 CDT on 8/19/2022). | The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: Plans are to remain in Mode 1 until corrected or until driven by the Technical Specifications to shut down (12-hour LCO from 1215 CDT on 8/19/2022). | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2022/ | * * * RETRACTION ON 10/14/22 AT 1311 EDT FROM JEFF HARDY TO KAREN COTTON * * * | ||
Grand Gulf Nuclear Station (GGNS) is performing this notification to retract event EN 56058 that was reported on August 19, 2022. Previously, GGNS notified the NRC that four Automatic Depressurization System (ADS) valves were inoperable due to a loss of system pressure. | |||
Based upon further investigation, the condition reported in EN 56058 was found to affect only a single ADS valve. As a result, it was determined that an event or condition that could have prevented the fulfillment of a safety function did not exist at GGNS. Sufficient redundancy existed to perform the safety function. | |||
The NRC Resident Inspector has been notified of the retraction. | |||
R4DO (Kellar) was notified. | |||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2022/20221018en.html#en56058 | |||
}}{{unit info | }}{{unit info | ||
| Unit = 1 | | Unit = 1 | ||
Latest revision as of 07:30, 18 October 2022
| Where | |
|---|---|
Grand Gulf  Mississippi (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
| Time - Person (Reporting Time:+3.52 h0.147 days <br />0.021 weeks <br />0.00482 months <br />) | |
| Opened: | Paul Lyne 20:46 Aug 19, 2022 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Oct 17, 2022 |
| 56058 - NRC Website
| |
Grand Gulf with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |