NRC CAL – NOV (White)

On October 11, 2012, the NRC issued a Notice of Violation to Duke Energy Carolinas, LLC (DEC) for a violation of Technical Specification (TS) 3.8.1, "AC Sources – Operating," associated with a White Significance Determination Process finding involving DEC's failure to maintain two qualified circuits between the offsite transmission network and the Onsite Essential Auxiliary Power System operable when operating in MODES 1, 2, 3 or 4. Specifically, from July 23, 2011, until November 11, 2011, when operating in MODE 1, one qualified circuit between the offsite transmission network and the Onsite Essential Auxiliary Power System was inoperable, and from November 11, 2011, until April 4, 2012, when operating in MODES 1, 2, 3, or 4, two qualified circuits between the offsite transmission network and the Onsite Essential Auxiliary Power System were inoperable.