10 CFR 50 Appendix B, Criterion V, Instructions, Procedures, and Drawings, requires, in part, that activities affecting quality shall be prescribed by documented instructions, procedures, or drawings, of a type appropriate to the circumstances and shall be accomplished in accordance with these instructions. Contrary to the above, on November 10, 2014, the licensee failed to accomplish procedure TI-64, Breaching Hazard Barriers, Revision 8 in accordance with its instructions. On November 10, 2014, during unit 2 component cooling water system flow balance testing, personnel used a wooden wedge to block open door A029, 1-B-B Charging Pump Room Door, in the auxiliary building. This was done to facilitate tubing connections needed for the testing.
TVA procedure TI-64, Breaching Hazard Barriers, Revision 8, Appendix A, Barrier Breach Matrix explicitly states that door A029 cannot be breached while the unit is in mode 1. The licensee identified this condition and took immediate actions to secure the door. The
1B-B charging pump was declared
inoperable for the approximately
10 hour1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> period of time the door was breached. Using
IMC 0609, Appendix A, Exhibit 2 (
Mitigating Systems); this finding was determined to be of very low safety significance (Green) because it did not result in an actual loss of function of at least a single train of equipment for greater than its technical specification allowed outage time.
