05000266/FIN-2010003-06
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Finding | |
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| Title | Procedures Were Not Appropriate to Adequately Verify and Document the Design of New or Modified SSCs With Respect to Seismic II/I Interactions |
| Description | A finding of very low safety significance and associated Non-Cited Violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was identified by the inspectors for the failure to provide procedures that were appropriate to verify and document the design of new or modified SSCs with respect to seismic II/I interactions. Specifically, the procedures used for seismic II/I interaction evaluations of new or modified SSCs did not provide guidance for evaluating equipment that was not represented in the earthquake experience or generic testing equipment classes under the scope of the Seismic Qualification Utility Group methodology. Also, no formal guidance was incorporated in modification and seismic procedures to document seismic II/I interaction evaluations. As a result, the licensee did not perform an evaluation that was in accordance with the licensing basis to verify the design of the B containment sump strainers of Units 1 and 2 with respect to potential seismic II/I interactions. The licensee entered this issue into its corrective action program. The performance deficiency was determined to be more than minor because it was associated with the Mitigating Systems Cornerstone attribute of protection against external events and adversely affected the cornerstone objective of ensuring the capability of systems that respond to initiating events to prevent undesirable consequences. This finding was of very low safety significance (Green) because it was a qualification deficiency confirmed not to result in loss of operability or functionality. The inspectors determined that the finding had a cross-cutting aspect in the area of problem identification and resolution, self and independent assessments, because the licensee did not conduct self-assessments of the Seismic Qualification Utility Group program (P.3(a)). |
| Site: | Point Beach  |
|---|---|
| Report | IR 05000266/2010003 Section 4OA5 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | K Barclay M Kunowski M Thorpe Kavanaugh N Feliz Adomo P Cardona Morales R Ruiz S Burton |
| CCA | P.6, Self-Assessment |
| INPO aspect | CL.2 |
| ' | |
Finding - Point Beach - IR 05000266/2010003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Point Beach) @ 2010Q2
Self-Identified List (Point Beach)
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