NRC NOV – NOV (White)

On August 1, 2005, a Notice of Violation was issued for a violation associated with a White SDP finding involving leakage of water from a safety injection accumulator which contained absorbed nitrogen gas. The licensee's evaluation and correction of this condition adverse to quality was inadequate. The violation cited the licensee's failure to (1) recognize the potential for nitrogen gas intrusion into the safety injection system and the resultant potential challenge to safety injection pump operation; and (2) adequately assess industry operating experience related to safety injection accumulator back leakage.