An NRC-identified
NCV was identified for failure to adequately update the
Updated Final Safety Analysis Report (
UFSAR) for the station blackout rule (
10 CFR 50.63) implementation. Some station blackout (
SBO) mitigating equipment described in the submitted information and analysis have been changed, and because they were not contained in the
UFSAR, were not evaluated under
10 CFR 50.59 for their effect on station blackout mitigation, to determine whether prior NRC approval was needed. This finding is in the licensees corrective action program as Plant Investigation Process (
PIP) M-06-3244. The finding is more than minor because it had a material impact on licensed activities. The missing
UFSAR information identified the systems and methodology used to combat a station blackout as described in the station blackout rule. This issue was considered as traditional enforcement because it had the potential for impacting the NRCs ability to perform its regulatory function. This issue was considered to meet the criteria for a
severity level IV violation. The cause of the finding is related to the crosscutting area of Problem Identification and Resolution because the licensee failed to thoroughly evaluate similar problems such that the extent of condition was considered and the cause resolved to prevent recurrence.
