ENS 56938
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ENS Event | |
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16:05 Jan 29, 2024 | |
Title | High Pressure Core Spray Failure |
Event Description | The following information was provided by the licensee via email:
At 1005 CST on January 29, 2024, Grand Gulf Nuclear Station was conducting surveillance testing on the high pressure core spray system. During testing, the 1E22F012 minimum flow valve failed to return to the full closed position. The valve went from full open indication to dual indication. The event is being reported in accordance with 10 CFR 50.72(b)(3)(v)(D) as an event or condition which could have prevented the fulfillment of a safety function. Troubleshooting is in progress. The NRC Senior Resident has been notified. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: All off-site power is available. No other systems are out of service and there are no compensatory measures taken. There is no increase to plant risk. |
Where | |
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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:+0.85 h0.0354 days <br />0.00506 weeks <br />0.00116 months <br />) | |
Opened: | Joshua Hubbard 16:56 Jan 29, 2024 |
NRC Officer: | Natalie Starfish |
Last Updated: | Jan 29, 2024 |
56938 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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