05000237/FIN-2010007-01
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Finding | |
|---|---|
| Title | Failure to Establish Heat Exchanger Inspection Procedures Appropriate for the Circumstances |
| Description | The inspectors identified a Non-Cited Violation (NCV) of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, having very low safety significance for the failure to establish inspection procedures that were appropriate for the circumstances for the NRC Generic Letter (GL) 89-13 program heat exchangers. Specifically, procedures did not contain adequate guidance for partially blocked heat exchanger tubes found to be completely blocked. As a result, the licensee did not evaluate the as-found conditions of the 2/3 Emergency Diesel Generator (EDG) jacket water heat exchangers; therefore, did not determine the heat exchangers were not bounded by applicable design documents. 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 system cornerstone attribute of procedure quality and affected the cornerstone objective. This finding was of very low safety significance 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 human performance because the licensee did not use a conservative assumption in decision making. Specifically, the licensee did not use a conservative assumption when establishing the acceptance criteria for the inspection of heat exchangers. |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2010007 Section 1R21 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | M Munir S Sheldon C Brown S Kobylarz S Spiegelman A Stone N Adorno J Coroju-Sandin |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Dresden - IR 05000237/2010007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2010Q2
Self-Identified List (Dresden)
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