01:18 Nov 17, 2020
Both Trains of Main Control Room Ventilation and Air Conditioning Systems Inoperable
At 1918 CST on 11/16/2020, it was discovered both required trains of the Main Control Room Ventilation and Air Conditioning systems were simultaneously inoperable. Due to these inoperabilities, the systems were 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).
Subsequent post-maintenance testing demonstrated that the Division 1 Main Control Room Ventilation system was available at the time of the event and was restored to operable status at 2036 CST on 11/16/2020.
There was no impact on the health and safety of the public or plant personnel.The NRC Resident Inspector has been notified.
Illinois (NRC Region 3)
|10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident|
|Time - Person (Reporting Time:+2.37 h0.0988 days <br />0.0141 weeks <br />0.00325 months <br />)|
03:40 Nov 17, 2020
|NRC Officer:||Brian Lin|
|Last Updated:||Nov 24, 2020|
|55002 - NRC Website|