ENS 57406
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ENS Event | |
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15:52 Oct 29, 2024 | |
Title | Inoperability of Division 3 Diesel Generator Supporting High Pressure Core Spray |
Event Description | The following information was provided by the licensee via phone and email:
At 1152 EDT, on 10/29/2024, the division 3 diesel generator was declared inoperable due to variations in steady state voltage during a planned monthly surveillance run. Troubleshooting of the issue is in progress. This condition could prevent the fulfillment of a safety function; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). All other emergency core cooling systems were operable during this time. There was no impact on the health and safety of the public or plant personnel. The NRC resident inspector has been notified. The following additional information was obtained from the licensee in accordance with Headquarters Operations Officers Report Guidance: Limiting condition for operations (LCO) 3.8.1.b was entered as a result of this event. |
Where | |
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Perry Ohio (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+1.67 h0.0696 days <br />0.00994 weeks <br />0.00229 months <br />) | |
Opened: | Darin Smith 17:32 Oct 29, 2024 |
NRC Officer: | Ernest West |
Last Updated: | Oct 29, 2024 |
57406 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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