Finding | |
|---|---|
| Title | Failure to Use Appropriate Acceptance Criteria for Testing Check Valves 1SW-9 and 10 |
| Description | The inspectors identified a Green NCV of 10 CFR 50, Appendix B, Criterion XI, Test Control, for incorrect test acceptance criteria for Emergency Service Water (ESW) pump discharge check valves 1SW-9 and 10 during test procedure OST- 1214/1215, ESW System Operability Train A/B Quarterly Interval Modes 1-2-3-4-5-6- Defueled. This finding was entered into the licensees corrective action program as condition report NCR 277362. The procedure was immediately placed on hold and planned corrective actions included revision of the ESW pump test procedures to directly observe absence of reverse rotation of the ESW pumps to verify adequate performance of the ESW pump discharge check valves. This finding is more than minor because if left uncorrected, it would become a more significant safety concern since the test procedure could have allowed an inoperable check valve to satisfactorily pass surveillance testing. Specifically, test criteria established would not ensure that the safety objective of preventing pump reverse rotation was achieved. The inspectors assessed the finding using the SDP and determined that the finding was of very low safety significance (Green) because the deficiency did not result in the ESW pumps being inoperable. (Section 1R21.2.2 |
| Site: | Harris  |
|---|---|
| Report | IR 05000400/2008006 Section 1R21 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | R Berryman R Lewis C Even B Desai B Mooney C Baron J Leivo |
| INPO aspect | |
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Finding - Harris - IR 05000400/2008006 | ||||||||||||||||||||||||||
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Finding List (Harris) @ 2008Q2
Self-Identified List (Harris)
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