ENS 57211
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ENS Event | |
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19:40 Jul 7, 2024 | |
Title | Both Trains of Control Room Ventilation Temperature Control System Inoperable |
Event Description | The following information was provided by the licensee via phone and email:
At 1440 CDT on 7/7/2024, it was discovered that both trains of the control room ventilation temperature control system were simultaneously inoperable. Due to this inoperability, the system was in a condition that could have prevented 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). There was no impact on the health and safety of the public or plant personnel. The NRC resident inspector has been notified. One train of control room ventilation temperature control was restored to operable status at 1634 CDT on 7/7/2024. |
Where | |
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Byron Illinois (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
LER: | 05000454/LER-2024-001 Both Trains of Control Room Ventilation Temperature Control System Inoperable |
Time - Person (Reporting Time:+3.53 h0.147 days <br />0.021 weeks <br />0.00484 months <br />) | |
Opened: | Peter Leonhardt 23:12 Jul 7, 2024 |
NRC Officer: | Ian Howard |
Last Updated: | Jul 7, 2024 |
57211 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 2 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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