05000454/FIN-2009003-01
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Finding | |
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| Title | |
| Description | A finding of very low safety significance and associated Non-Cited Violation of Technical Specification 3.4.13.B was identified by the NRC inspectors on June 24, 2009, when reactor coolant pressure boundary leakage was identified on a Unit 2 process sampling line and the licensee continued to operate the unit but did not repair or isolate the leak within the Technical Specification Limiting Condition for Operation requirement of 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. The licensee entered this issue into the corrective action program and replaced the leaking section of pipe. The inspectors concluded that the finding was greater than minor in accordance with Appendix E, Example 2a, of IMC 0612, regarding situations when Technical Specification limits were exceeded. The finding was determined to be of very low safety significance after an SDP Phase 2 evaluation. The issue had been entered into the licensees corrective action program as Issue Report (IR) 934800. The primary cause for this finding was related to the cross-cutting area of Human Performance and its associated component for Decision Making (H.1(b)) because licensee management personnel concluded that this leak did not represent reactor coolant pressure boundary leakage due to the closure of an isolation valve. |
| Site: | Byron  |
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| Report | IR 05000454/2009003 Section 1R15 |
| Date counted | Jun 30, 2009 (2009Q2) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | R Ng C Thompson B Bartlett J Robbins J Cassidy M Phalen A Garmoe R Skokowski J Dalzell |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Byron - IR 05000454/2009003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Byron) @ 2009Q2
Self-Identified List (Byron)
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