ENS 53593

v t e ENS Event
04:00 Sep 11, 2018
Title	Control Room Emergency Ventilation System Inoperable
Event Description	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.

ENS 53593 +/-
Where
Watts Bar Tennessee (NRC Region 2)
Reporting

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 />)
Opened:	Justin Gallagher 05:17 Sep 11, 2018
NRC Officer:	Ossy Font
Last Updated:	Sep 11, 2018
53593 - NRC Website
v • d • e

v t e Emergency Notification System
Watts Bar with 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident
WEEKMONTHYEAR2021-03-01T20:11:00 [Table view]
[ENS list for Watts Bar]

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