05000395/FIN-2012002-04
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Finding | |
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| Title | Nonconformance of Service Water Pipe Support, SWH- 245, With Design Documents |
| Description | On February 22, 2012, during a cross-train walkdown the inspectors identified that SWH-245 was not supporting its respective SW pipe (inlet to the A EDG intercooler) due to the existence of an approximate .125 inch gap between the bottom of the pipe and the support. The inspectors reviewed the associated design drawing, S- 321-251 sheet 245A, noted that SWH-245 should carry a dead weight load of 3206 pounds, noted that the downstream inlet nozzle on the A EDG intercooler, XHE0017AHE3, would be affected, and concluded that this issue of concern was a performance deficiency. The licensee iniated CR-12-00771 and subsequently completed engineering information request (EIR) 81867 which was reviewed by the inspectors and a NRC headquarters pipe stress analyst. The NRC determined that EIR81867 contained several errors consisting of using incorrect stress values and failed to consider stress due to moments on the affected intercooler nozzle. Additionally, the inspectors determined that CR-12-00771 did not identify this problem as a nonconformance. Pending completion of the licensees correction to their engineering evaluation for additional consideration in determining if the PD is more than minor, this is identified as URI 05000395/2012002-04, Nonconformance of Service Water Pipe Support, SWH-245, With Design Documents. |
| Site: | Summer  |
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| Report | IR 05000395/2012002 Section 1R15 |
| Date counted | Mar 31, 2012 (2012Q1) |
| Type: | URI: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | C Dykes C Fontana D Berkshire E Coffman G Mccoy J Dodson J Reece R Hamilton R Kellnera Alen E Coffman G Mccoy J Reece M Thomas P Higgin |
| INPO aspect | |
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Finding - Summer - IR 05000395/2012002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Summer) @ 2012Q1
Self-Identified List (Summer)
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