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04:00 Sep 11, 2018
Control Room Emergency Ventilation System Inoperable
At 0113 EDT on September 11, 2018, it was discovered both trains of CREVS [control room emergency ventilation system] were simultaneously inoperable; 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.The door to the main control room habitability zone from the turbine building was left open and unattended for about a minute, breaking the pressure boundary in the room, resulting in an alarm. The door was closed, clearing the alarm and the CREVS was considered operable.
|Watts Bar |
Tennessee (NRC Region 2)
|10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident|
|Time - Person (Reporting Time:+1.28 h0.0533 days <br />0.00762 weeks <br />0.00175 months <br />)|
05:17 Sep 11, 2018
|NRC Officer:||Ossy Font|
|Last Updated:||Sep 11, 2018|
|53593 - NRC Website|
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