12:49 Jun 12, 2019
Loss of Control Room Emergency Air Temperature Control System
At 0849 (EDT), a significant air leak on an inline air filter was identified. At 0908, the leak on the filter was isolated. A subsequent review of this situation determined that this air leak impacted operation of the A Train of the Control Room Emergency Air Temperature Control System (CREATCS) which is required to be operable in accordance with Technical Specification 3.7.10. At the time of this event, the B Train of CREATCS was out of service for planned maintenance.
With both trains of CREATCS out of service, both Watts Bar Units entered a condition that could have prevented fulfillment of a safety function. This condition was terminated when the leaking air filter was isolated. This event is being reported pursuant to 10 CFR 50.72(b)(3)(v)(D).NRC Resident Inspector has been notified."
|Watts Bar |
Tennessee (NRC Region 2)
|10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident|
|LER:||look for an ler...|
|Time - Person (Reporting Time:+-0.9 h|
11:55 Jun 12, 2019
|NRC Officer:||Michael Bloodgood|
|Last Updated:||Jun 12, 2019|
|54112 - NRC Website|