The inspectors identified an
NCV for the licensees failure to comply with10 CFR 50, Appendix B, Criterion XI, Test Control. Specifically, the licensee failed to establish a minimum diesel generator (
DG) run time of at least five minutes when performing the hot restart test as is called for by
Regulatory Guide 1.9, Selection, Design, Qualification, and Testing of
Emergency Diesel Generator Units Used as Class1E Onsite Electric Power Systems at Nuclear Power Plants, Revision 3. The licensees
Updated Final Safety Analysis Report (
UFSAR), Appendix B commits to
Regulatory Guide 1.9, Revision 3 with noted exceptions for testing of the sites
emergency diesel generator units. This finding is greater than minor because it is associated with the procedure quality attribute and affected the objective of the
Mitigating Systems Cornerstone to ensure the availability, reliability, and capability of systems that respond to
initiating events to prevent undesirable consequences. This finding was determined to be a finding of very low safety significance because all
IMC 0609 phase 1
Mitigating Systems issue characterization questions were answered no. The inspector determined there was no cross cutting aspect associated with this finding. (Section 4OA2.4
