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Green . The inspectors identified a findin … Green . The inspectors identified a finding of very -low safety significance and an associated cited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the failure to properly verify the adequacy of design of the fuel building crane and crane support structure elements. Specifically, calculations involving the crane rail clips and clip bolts had multiple technical errors and failed to adequately demonstrate that the design met the design basis requirements. The licensee initiated corrective actions by documenting the deficiency in A R 4001089 and performed an evaluation demonstrating that the functionality of the crane was maintained. The finding was determined to be more -than -minor because it was associated with the design control attribute of the Barrier Integrity cornerstone and adversely affected the cornerstone objective of maintaining the functionality of the spent fuel pool (SFP) cooling system. Specifically, crane rail clip bolts were required to ensure structural integrity of structures, systems, and components described in the Updated Safety Analysis Report, 5 when subjected to design loads as part of safe load handling of heavy loads near the SFP and to ensure integrity of the spent fuel cask. In accordance with IMC 0609, Significance Determination Process , Attachment 0609.04, Initial Characterization of Findings, Table 2, the inspectors determined the finding affected the Barrier Integrity cornerstone because it was associated with SFP/fuel handling activities . Based on answering No to questions A through F in Table 3, the inspectors determined the finding could be evaluated using Appendix A, The Significance Determination Process for Findings At -Power, Exhibit 3, for the Barrier Integrity cornerstone screening questions. Based on the crane remaining functional, the inspectors answered No to Questions D.1 through D.4 because the finding did not adversely affect decay heat removal capabilities, did not result from fuel handling errors, did not result in loss of SFP inventory, and did not affect the SFP neutron absorber or fuel bundle misplacement ; therefore , the finding screened as having very -low safety significance. The finding was cross- cutting in the resolution aspect of the problem identification and resolution area because the licensee failed to take effective corrective actions in a timely manner to address issues identified earlier in the rail clip evaluations. (P.3)arlier in the rail clip evaluations. (P.3)

Discovered date

23:59:59, 30 June 2017 +

Docket

05000461 +

Event date

23:59:59, 30 June 2017 +

Finding integer

2 +

Finding type

Finding +

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INPO aspect

PI.3 +

Identified by

NRC identified +

Inspection Manual Chapter

NRC Inspection Manual 0609 +

Inspection procedure

IP 71111.18 +

Inspection report

IR 05000461/2017002 +

Inspector

E Sanchez-Santiago +, S Mischke +, L Torres +, Vijay Meghani +, Karla Stoedter +, William Schaup +, Matthew Doyle +, Stephen Bell + and Geoffrey Edwards +

Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.

00:56:36, 21 February 2018 +

Person