05000293/FIN-2012005-01
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Finding | |
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| Title | Failure to Verify the Adequacy of the Design of the SBO Fuel Oil Transfer System |
| Description | The inspectors identified a finding of very low safety significance (Green) involving a non-cited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, because Entergy did not implement design control measures commensurate with those applied to the original design when a system modification was made to the Emergency Diesel Generators (EDG) fuel oil transfer system. Specifically, Entergy did not implement the design change or modification process when a Station Blackout Diesel Generator fuel oil transfer system was put in place in 1998 to meet the EDG support function of transferring sufficient fuel to meet the mission time of the EDG safety function. As a result, the fuel oil suction hose used was not in accordance with the design. Entergy replaced the degraded and non conforming hose, and documented this issue in their corrective action program (CR-PNP-2012-3428). The performance deficiency was determined to be more than minor because it is associated with the Design Control attribute of the Mitigating Systems cornerstone, and adversely affected the cornerstones objective to ensure the reliability of systems that respond to initiating events to prevent undesirable consequences. The finding was determined to be of very low safety significance (Green) because the finding was a design process deficiency and did not represent a loss of system and/or function or the loss of a single train for greater than its TS outage time. The finding does not have a cross-cutting aspect since the failure to implement the design change verification process is not indicative of current licensee performance. Entergys current design change procedures require design reviews of this type of in-field modification. |
| Site: | Pilgrim |
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| Report | IR 05000293/2012005 Section 1R18 |
| Date counted | Dec 31, 2012 (2012Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.18 |
| Inspectors (proximate) | T Moslak J Lilliendahl G Meyer S Pindale T Fish B Smith M Schneider R Bellamy M Orr |
| INPO aspect | |
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Finding - Pilgrim - IR 05000293/2012005 | |||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Pilgrim) @ 2012Q4
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