05000456/FIN-2012007-01
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Finding | |
|---|---|
| Title | Non-Conforming Piping Condition Not Corrected |
| Description | A finding of very low safety significance (Green) and an associated NCV of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, was identified by the inspectors when a non-conforming condition previously identified by the NRC was not corrected. Specifically, the licensee did not plan or perform corrective actions for a non-conforming condition where lead blankets were placed on various safety-related pipes without meeting American Society of Mechanical Engineers (ASME) Code requirements. The licensee entered this issue into the CAP as IR 1383554 and planned to perform the required analyses. The inspectors determined that the failure to correct a non-conforming condition 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 (i.e., core damage). Specifically, the licensee failed to ensure compliance with American Institute of Steel Construction (AISC) and ASME Boiler and Pressure Vessel Code Section III requirements to ensure the piping and pipe supports would maintain their structural integrity when subjected to design basis loads. The finding was determined to be 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 had a cross-cutting aspect in the Decision-Making component of the Human Performance cross-cutting area H.1(b) because licensee personnel failed to verify the assumption that NCIG-5 could be used in lieu of meeting the design bases ASME Code requirement. |
| Site: | Braidwood  |
|---|---|
| Report | IR 05000456/2012007 Section 4OA2 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | A Garmoe B Bartlett D Szwarc E Duncan J Benjamin J Robbins M Perry R Langstaff R Ng T Go V Meghania Garmoed Chyu D Szwarc E Duncan M Perry R Ng |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
| ' | |
Finding - Braidwood - IR 05000456/2012007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Braidwood) @ 2012Q2
Self-Identified List (Braidwood)
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