05000298/FIN-2010003-01
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Finding | |
|---|---|
| Title | Failure to Document Design of Service Water Discharge Piping in Plant Drawings |
| Description | The inspectors identified a non-cited violation of 10 CFR 50 App B Criterion III, Design Control, in which the licensee failed to maintain accurate design drawings of the service water system discharge piping. Specifically, Drawing BR 2120, Yard Circ. & Service Water Piping Plan & Sections, Revision 14 incorrectly identified the as-built configuration of the service water system discharge piping, and was used as a design input to numerous essential calculations. The licensee completed an operability evaluation that demonstrated that the service water was operable despite the condition. The licensee entered this issue in their corrective action program as Condition Report CR-CNS-2010-03689
The finding was more than minor because it affected the design control attribute of the mitigating systems cornerstone, and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). This finding was characterized under the significance determination process as having very low safety significance because all of the screening questions in the Manual Chapter 0609, Attachment 4, Initial Screening and Characterization of Findings Phase 1 screening table were answered in the negative. The inspectors determined that no cross cutting aspect was applicable to this finding due to the age of the performance deficiency and the lack of recent identification opportunities. |
| Site: | Cooper  |
|---|---|
| Report | IR 05000298/2010003 Section 1R04 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.04 |
| Inspectors (proximate) | N Taylor R Hagar V Gaddy M Chambers R Kumana |
| INPO aspect | |
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Finding - Cooper - IR 05000298/2010003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cooper) @ 2010Q2
Self-Identified List (Cooper)
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