The inspectors identified an
URI associated with an equipment clearance that inadvertently resulted in all
sump pumps in the
EDG and DFOST buildings being nonfunctional. This item is unresolved pending review and evaluation of the licensees evaluation to determine the impact of a potential internal flood and if a performance deficiency exists. On June 26, 2014, the licensee placed equipment under clearance to support installation associated with an Engineering Change (EC). This clearance removed all
sump pumps in the
EDG and DFOST buildings from service. Inspectors identified this issue and informed the licensee, who restored the
sump pumps to service. Additional inspection activities are needed to determine the impact of a potential internal flood and if a performance deficiency exists. Pending the results of this additional inspection, an
URI will be opened and designated as
URI 05000400/2014004-01, Potential Impact of
Sump Pumps out of Service.
