05000482/FIN-2008003-06
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Finding | |
|---|---|
| Title | Failure to Verify Engineering Design Calculation Prior to Use |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion III, \"Design Control,\" for failure to implement engineering procedures and approve a third party calculation prior to use. Specifically, the calculation review failed to identify the incorrect design inputs to the net positive suction head calculations on two occasions for residual heat removal and containment spray pumps. The licensee entered this issue into their corrective action program as Condition Report 2008-1305 which included action to correct the calculations. This finding was more than minor because they were similar to nonminor Example 3.j from NRC Inspection Manual Chapter 0612, Appendix E, \"Examples of Minor Issues,\" in that, there was a reasonable doubt on the operability of the residual heat removal and containment spray pumps; and if left uncorrected, could result in a more significant-safety concern. The finding is of very low safety significance because it was a qualification deficiency confirmed not to result in loss-of-operability in accordance with NRC Manual Chapter Part 9900, Technical Guidance, \"Operability Determination Process for Operability and Functional Assessments.\" The finding had a problem identification and resolution area crosscutting aspects in the corrective action program component, because the site failed to perform a thorough evaluation of vendor calculations to ensure conditions adverse to quality are identified and resolved [P.1 (c)] |
| Site: | Wolf Creek  |
|---|---|
| Report | IR 05000482/2008003 Section 4OA5 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | K Clayton P Elkmann L Ellershaw S Cochrum C Long V Gaddy |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Wolf Creek - IR 05000482/2008003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Wolf Creek) @ 2008Q2
Self-Identified List (Wolf Creek)
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