Finding | |
|---|---|
| Title | Non-Conservative Calculation for SSW Pump Minimum Flowrate |
| Description | Green. The team identified a finding of very low safety significance involving a non-cited violation of 10 CFR 50, Appendix B, Criterion III, Design Control, in that, Entergy did not properly translate design basis parameters into specifications and procedures for the salt service water (SSW) system. Specifically, the system hydraulic analysis did not establish a system leakage limit, and the plant operating procedures allowed alignments that could have led to a condition where system leakage could have been in excess of the available margin. Entergy entered this issue into their corrective action system and instituted immediate corrective actions. This finding is more than minor because the deficiency represented reasonable doubt on the operability of the SSW system. The finding is 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. The team determined the finding was of very low safety significance (Green) because it was a design deficiency confirmed not to result in a loss of the SSW system. (1R21.2.1.11 |
| Site: | Pilgrim |
|---|---|
| Report | IR 05000293/2008007 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) | L Scholl S Pindale G Skinner M Shlyamberg J Schoppy A Patel L Casey L Doerflein |
| INPO aspect | |
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Finding - Pilgrim - IR 05000293/2008007 | ||||||||||||||||||||||||||||||||||
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Finding List (Pilgrim) @ 2008Q2
Self-Identified List (Pilgrim)
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