05000285/FIN-2008003-05
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Finding | |
|---|---|
| Title | Inadequate Corrective Actions for a Containment Spray Design Deficiency |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Actions, for the failure to promptly implement corrective actions for a condition adverse to quality. Specifically, in 1990 the licensee identified that containment spray pumps may runout, and possibly fail, under certain conditions. For example, if one containment spray pump failed for mechanical reasons (such as a shaft failure) the remaining pump would be subjected to runout conditions. Corrective measures were inadequate, in that the potential failure mode continued to exist from 1990 until identified by the inspectors in 2008. This finding was greater than minor because it was similar to non-minor example 3.j in NRC Manual Chapter 0612, Appendix E, Examples of Minor Issues, in that there was a reasonable doubt concerning the operability of the containment spray system, assuming a worst case single failure. Using the NRC Manual Chapter 0609, Phase 1 worksheet, Initial Screening and Characterization of Findings, the finding screened as having very low safety significance because it did not: 1) represent a degradation of the radiological barrier for the control room, auxiliary building, or spent fuel pool; 2) represent a degradation of the barrier function of the control room against smoke or a toxic atmosphere; 3) represent an actual open pathway in the containment; and 4) involve a degradation of the hydrogen ignitor function. This violation was entered in the licensees Corrective Action Program as CR 2008-1683. This finding did not have a crosscutting aspect because the performance deficiency was a long-standing issue and not necessarily indicative of current performanc |
| Site: | Fort Calhoun  |
|---|---|
| Report | IR 05000285/2008003 Section 4OA5 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Kirkland P Elkmann L Ellershaw D Stearns J Hanna W Walker M Young S Makor T Pate |
| INPO aspect | |
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Finding - Fort Calhoun - IR 05000285/2008003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fort Calhoun) @ 2008Q2
Self-Identified List (Fort Calhoun)
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