NRC CAL – —

On April 7, 2015, the NRC issued a Notice of Violation to Tennessee Valley Authority, for a violation, identified as a result of an inspection and investigation at its Watts Bar Nuclear Plant, Unit 2, involving the licensee employees' willful failure to follow a procedure for activities affecting quality in accordance with 10 CFR 50, Appendix B, Criterion V, "Instructions, Procedures, and Drawings". Specifically, on or about December 19, 2011, contract employees assigned to install anchor bolts for overhead base plates, which support safety related ventilation in the containment building, willfully failed to remove and replace, or obtain site engineering approval for, newly installed wedge bolt anchors that exceeded 5 degrees of perpendicular, as required by the licensee's procedure. Out of tolerance anchor bolts on two hangers were bent (straightened) to within 5 degrees of perpendicular utilizing a non-approved modified tool. All four overhead base plates of the two hangers had at least one bent (weakened) bolt.