05000382/FIN-2011007-02
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Finding | |
|---|---|
| Title | Failure to Establish an Adequate Containment Spray Pump Design Basis Verification Surveillance Test |
| Description | The team identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, which states, in part, A program shall be established to assure that all testing required to demonstrate that structures, systems, and components will perform satisfactorily in service is identified and performed in accordance with written test procedures which incorporate acceptance limits contained in applicable documents. Specifically, as of October 4, 2011, the licensee did not have an adequate test procedure to verify containment spray pump design basis accident performance requirements. This finding was entered into the licensees corrective action program as Condition Report CR-WF3-2011-06852. The team determined that the failure to either have a stand-alone design basis accident containment spray pump verification test or to have it adequately incorporated into the in-service testing requirements was a performance deficiency. This finding was more than minor because it was associated with the design control attribute of the Mitigating Systems Cornerstone and affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, neither the design basis analysis nor related inservice test surveillances, accounted for the inherent uncertainty of the flow element in the overall instrument uncertainty evaluation. In accordance with NRC Inspection Manual Chapter 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, the issue was determined to have very low safety significance (Green) because it was not a design or qualification deficiency, did not represent a loss of system safety function, and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. This finding did not have a crosscutting aspect because the most significant contributor did not reflect current licensee performance. |
| Site: | Waterford  |
|---|---|
| Report | IR 05000382/2011007 Section 1R21 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | C Smith T Farnholtz W Sifre J Leivo E Uribe N Hernandez |
| INPO aspect | |
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Finding - Waterford - IR 05000382/2011007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Waterford) @ 2011Q4
Self-Identified List (Waterford)
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