05000277/FIN-2011007-01
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Finding | |
|---|---|
| Title | Failure to Demonstrate the Capability of the EDG Fuel Oil Transfer Pumps to Fulfill Their Safety Functions Under all Postulated Conditions |
| Description | 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, Exelon did not ensure the ability to transfer fuel oil between underground fuel oil storage tanks. Specifically, Exelon had not performed adequate analyses or testing to demonstrate adequate net positive suction head available (NPSHA) for the EDG fuel oil transfer pumps. In response, Exelon entered this issue into their corrective action program and performed an evaluation to assure the fuel oil transfer pump NPSHA was adequate. The finding was more than minor because it was associated with the design control attribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The team performed a Phase 1 SOP screening, in accordance with NRC IMC 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, and determined the finding was of very low safety significance (Green) because it was a design or qualification deficiency confirmed not to result in loss of operability or functionality. This finding does not have a crosscutting aspect because the most significant contributor of the performance deficiency is not reflective of current licensee performance. |
| Site: | Peach Bottom  |
|---|---|
| Report | IR 05000277/2011007 Section 1R21 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | J Richmond S Pindale W Sherbin J Brand S Kobylarz M Balazik L Doerflein |
| INPO aspect | |
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Finding - Peach Bottom - IR 05000277/2011007 | ||||||||||||||||||||||||||||||||||||||||||
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Finding List (Peach Bottom) @ 2011Q1
Self-Identified List (Peach Bottom)
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