The inspectors identified a non-cited violation (
NCV) of
Technical Specification (TS) 5.4.1.a. for failure to adequately establish and maintain procedures required by
Regulatory Guide 1.33, Appendix A, Section 5, Procedures for Abnormal Conditions. Specifically, loss of nuclear
service water (RN) procedures were not established and maintained with an adequate safety analysis for the sharing of nuclear
service water between units. This finding is more than minor because it affects the availability, reliability, and capability of the RN system (
ultimate heat sink) and is related to the design control and procedure quality attributes of the
mitigating systems cornerstone. In addition, this finding could be reasonably viewed as a precursor to a significant event (i.e. loss of RN on both units). The issue was determined to be of very low safety significance in
IMC 0609 SDP Phase 1 screening based on the fact that this finding did not represent an actual loss of system safety function nor a loss of a single train of RN for greater than its Technical Specification allowed outage time, because these procedural steps had never been used. This finding has a cross-cutting aspect of resources in the area of human performance
H.2.c] because the licensee failed to ensure that procedures had complete, accurate and up-to-date design documentation to assure nuclear safety. (Section 1R11
