ENS 58035: Difference between revisions
Jump to navigation
Jump to search
StriderTol (talk | contribs) (StriderTol Bot insert) |
StriderTol (talk | contribs) (StriderTol Bot change) |
||
| (One intermediate revision by the same user not shown) | |||
| Line 12: | Line 12: | ||
| emergency class = Non Emergency | | emergency class = Non Emergency | ||
| notification date = 11/12/2025 16:02 | | notification date = 11/12/2025 16:02 | ||
| retracted = Yes | |||
| notification by = Daniel Mueller | | notification by = Daniel Mueller | ||
| NRC officer = Ian Howard | | NRC officer = Ian Howard | ||
| event date = 11/12/2025 07:48 CST | | event date = 11/12/2025 07:48 CST | ||
| last update date = 11/ | | last update date = 11/20/2025 | ||
| title = Actuation of Auxiliary Feedwater System | | title = Actuation of Auxiliary Feedwater System | ||
| event text = The following information was provided by the licensee via phone and email: | | event text = The following information was provided by the licensee via phone and email: | ||
| Line 23: | Line 24: | ||
The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: | The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: | ||
Decay heat is being removed via steam dump valves to the main condenser. | Decay heat is being removed via steam dump valves to the main condenser. | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2025/ | * * * RETRACTION ON NOVEMBER 20, 2025, AT 1409 EST FROM ZACH MILLIGAN TO JORDAN WINGATE * * * | ||
The following is a summary of the retraction provided by the licensee via phone and email. | |||
Event Notification 58035, made on November 12, 2025, pursuant to 10 CFR 50.72(b)(3)(iv)(A), is being retracted following a review of the cause of the auxiliary feedwater system's automatic actuation. The AFW system actuation was traced to a power supply malfunction, which also caused the auxiliary feedwater pumps to align with essential service water. Because the actuation resulted from a spurious power supply failure, rather than signals triggered by plant conditions or parameters meeting system initiation criteria, it is considered invalid and not reportable under 10 CFR 50.72(b)(3)(iv)(A). | |||
The NRC Resident Inspector has been informed. | |||
Notified R4DO (Drake) | |||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2025/20251121en.html#en58035 | |||
}}{{unit info | }}{{unit info | ||
| Unit = 1 | | Unit = 1 | ||
Latest revision as of 07:20, 21 November 2025
| Where | |
|---|---|
Callaway  Missouri (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
| Time - Person (Reporting Time:+2.23 h0.0929 days <br />0.0133 weeks <br />0.00305 months <br />) | |
| Opened: | Daniel Mueller 16:02 Nov 12, 2025 |
| NRC Officer: | Ian Howard |
| Last Updated: | Nov 20, 2025 |
| 58035 - NRC Website
| |