ENS 54203
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ENS Event | |
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17:35 Aug 6, 2019 | |
Title | Inoperable Instrumentation Affects Safe Shutdown Capability |
Event Description | At 1335 EDT on 08/06/2019, it was discovered that reactor protection system (RPS) instrumentation functions for turbine stop valve closure and turbine control valve fast closure, end of cycle recirculation pump trip (EOC-RPT) instrumentation, and control rod block instrumentation were simultaneously inoperable due to a loss of feedwater heating; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v).
RPS instrumentation, EOC-RPT instrumentation, and control rod block instrumentation functions were restored at 1422 EDT on 08/06/2019. There was no impact on the health and safety of the public or plant personnel. The NRC Senior Resident Inspector has been notified. |
Where | |
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Perry Ohio (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+-0.1 h-0.00417 days <br />-5.952381e-4 weeks <br />-1.3698e-4 months <br />) | |
Opened: | Ed Condo 17:29 Aug 6, 2019 |
NRC Officer: | Andrew Waugh |
Last Updated: | Aug 6, 2019 |
54203 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (65 %) |
After | Power Operation (65 %) |
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