An NRC-identified non-cited violation of
10 CFR 50, Appendix B, Criterion XVI, Corrective Action, was identified for the licensees failure to take timely corrective actions for a
condition adverse to quality. The licensee failed to take timely actions to correct the degraded, nonconforming condition resulting from a sheet metal plate over a
penetration in the Unit 3 control battery room pressure boundary wall. The licensee entered this issue into their corrective action program (
CAP), performed an operability evaluation, and declared the wall
operable but degraded/non-conforming (
OBDN). The performance deficiency (
PD) was more than minor because it was associated with the
Mitigating Systems Cornerstone attribute of Design Control and adversely impacted the cornerstone objective in that functionality of the pressure boundary was not maintained. The finding was of very low safety significance (Green) because it did not actually result in a safety related system being
inoperable. The cause of the finding was directly related to thoroughly evaluate problems in the Corrective Action Program component of the Problem Identification and Resolution area because the licensee failed to evaluate the sheet metal plate to maintain the safety-related pressure boundary function of the battery room wall.
