05000247/FIN-2010004-02
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Finding | |
|---|---|
| Title | Plant Operation Outside Technical Specifications Due to a Leak in the Reactor Coolant Pressure Boundary |
| Description | This issue is considered within the traditional enforcement process because there was no performance deficiency identified and NRC IMC 0612, Appendix B, Issue Screening directs disposition of this issue in accordance with the NRC Enforcement Policy. The inspectors used the Enforcement Policy, Section 6.1 - Reactor Operations, to evaluate the significance of this violation. The inspectors concluded that the violation is more than minor and best characterized as Severity Level IV (very low safety significance) because it is similar to Enforcement Policy Section 6.1, Example d.1. Additionally, the inspectors assessed the risk associated with the issue by using IMC 0609, Appendix A, Determining the Significance of Reactor Inspection Findings for At-Power Situations. The inspectors screened the issue and determined that RCS leakage is considered a Loss-of-Coolant Accident initiator, and evaluated using the Initiating Event criteria in Appendix A. Based on the weld defect size and characterization of the flaw, it is not expected this existing flaw would have impacted the structural integrity of the bypass line, the leakage would not result in exceeding the TS limit for identified RCS leakage (10 gpm) nor would the leakage have likely affected other mitigation systems resulting in a total loss of their safety function. As a result, this issue would screen as very low safety significance (Green). Because this issue is of very low safety significance (Green) and it has been determined that this issue was not within Entergy's ability to foresee and correct, that Entergy staff's actions did not contribute to the degraded condition, and that actions taken were reasonable to identify and address this matter, and as such no performance deficiency exists, the NRC has decided to exercise enforcement discretion in accordance with Section 3.5 of the NRC Enforcement Policy and refrain from issuing enforcement action for the violation of TSs (EA-1 0-212). Further, because licensee actions did not contribute to this violation, it will not be considered in the assessment process or the NRC's Action Matrix. This LER is closed. Specific documents reviewed during this inspection are listed in the attachment. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2010004 Section 4OA3 |
| Date counted | Sep 30, 2010 (2010Q3) |
| Type: | Violation: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | B Bickett H Gray J Nicholson M Catts M Gray O Ayegbiso |
| INPO aspect | |
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Finding - Indian Point - IR 05000247/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2010Q3
Self-Identified List (Indian Point)
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