ENS 58008
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ENS Event | |
|---|---|
06:17 Oct 27, 2025 | |
| Title | Valid Reactor Protection System Actuation While Shutdown |
| Event Description | The following information was provided by the licensee via phone and email:
At 0117 CDT on 10/27/2025, with Unit 2 in mode 3 at 0 percent power, an actuation of the RPS system occurred during restoration of the scram instrument volume high level bypass switch to normal. The cause of the RPS system actuation was a valid high level in the scram instrument volume. All control rods had been previously inserted and the RPS system automatically initiated a scram signal as designed when the scram instrument volume high level signal was received. This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of the RPS system. There was no impact on the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified. |
| Where | |
|---|---|
Dresden  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
| Time - Person (Reporting Time:+2.55 h0.106 days <br />0.0152 weeks <br />0.00349 months <br />) | |
| Opened: | Shawn Kenady 08:50 Oct 27, 2025 |
| NRC Officer: | Ian Howard |
| Last Updated: | Oct 27, 2025 |
| 58008 - NRC Website
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