A Green non-cited violation (
NCV) of
10CFR Part 50, Appendix B, Criterion III, Design Control was identified. The
NCV was related to Exelons failure to implement a preventative maintenance requirement described in a design calculation used to upgrade the 125 ton reactor building bridge crane. The finding is more than minor because, if left uncorrected, it could become a more significant safety concern if the crane components were allowed to degrade in an undetected manner. Specifically, the failure to develop the specified preventative maintenance practice could lead to operation of the crane in a degraded condition. The inspectors used
Inspection Manual Chapter 0609 Appendix M,
Significance Determination Process Using Qualitative Criteria, because other
significance determination process guidance was not suited to provide reasonable estimates of the significance of this inspection finding. With the assistance of Region I management, the inspectors determined that the finding was of very low safety significance (Green) because there was no actual crane operational problem during the spent fuel handling activities.
