A finding of very low safety significance (Green) and associated
NCV of
10 CFR Part 50, Appendix B, Criterion XI, Test Control, was identified by the inspectors for the failure to test
reactor protection system (
RPS) key locked bypass switches. The licensee entered this issue into its corrective action program and initiated procedural changes to require periodic testing of the
RPS bypass switches. This finding was more than minor because the licensee did not ensure the operability and functional performance of the key lock switches used bypass automatic protection circuits in the
RPS. The issue was of very low safety significance because the inspectors determined that it did not result in actual loss of safety function. The inspectors determined there was no cross-cutting aspect associated with this finding. (Section 1R21.6.b.(1)
