The NRC identified a Green
NCV of
10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to identify and correct a
Condition Adverse to Quality (
CAQ). Specifically, the licensee failed to capture in the
CAP a concern with the potential corrosion of magnesium motor rotor fan blades associated with safety-related motor operated valves (
MOVs). The
MOVs were associated with the reactor recirculation and
residual heat removal (specifically the low pressure core injection mode) systems. The concern was identified during an internal licensee review of
OE. The failure to capture this item in the
CAP resulted in the licensee not being able to utilize the
CAP process to ensure that the
CAQ had been properly evaluated and corrected. This finding has an associated cross-cutting aspect associated in the area of
PI&R, Corrective Action Program for the failure to properly evaluate the potential impact of the
CAQ on the affected, safety-related
MOVs. [P.1(C)] The finding is more than minor because it directly affected the Human Performance attribute of the
Initiating Events Cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions while at power. The finding also directly affected the Equipment Performance attribute of the Mitigating System Cornerstone objective of ensuring the availability, reliability and capability of systems that respond to
initiating events to prevent undesirable consequences (i.e., core damage). The finding is of very low safety significance, because the issue only involved the potential degradation, but not the actual loss of a plant component (i.e., there was no actual initiating event nor loss of a mitigating system). (Section 4OA2.2
