An Unresolved Item (
URI) was identified to review the licensees re-evaluation of the initial 50.59 evaluation for the Flood Outlet Device to determine if the performance deficiency is more than minor. In November 1998, the licensee identified that a
HELB induced flood in the
EPR could spread to other components in the Auxiliary Building (
AB) and affect the ability of various safe shut down (S/D) equipment to perform its safety-related function as described in the Final Safety Analysis Report (
FSAR). The licensee developed a modification package in April 2006, to install a Flood Outlet Device (FOD) which required a 50.59 evaluation. An initial 50.59 screening determined that the FOD modification did not require a detailed 50.59 evaluation. On August 21, 2006, the licensee conducted a review of the 50.59 screening and, as documented in
PIP O-06-05726, ...were not able to conclusively determine if the correct conclusion had been made. A corrective action was identified in the corrective action document to perform an in-depth 50.59 screening and evaluation. The inspectors determined, through personnel interviews and review of documentation, that the licensee failed to perform this corrective action for a
condition adverse to quality. The licensee is performing a revised 50.59 screening. The inspectors will evaluate the results of the screening to determine if a performance deficiency exists. This is identified as
URI 05000270/2014004-01, Review of FOD 50.59 Evaluation.
