05000286/FIN-2011002-02
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Finding | |
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| Title | Failure to Submit an LER for a Condition Prohibited By TS Associated With 31 Battery Charger Inoperability |
| Description | SL IV. The inspectors identified a Severity Level IV, NCV of 10 CFR 50.73(a)(2)(i)(B), because Entergy personnel did not provide a written Licensee Event Report (LER) to the NRC within 60 days of identifying a condition which was prohibited by plant Technical Specifications (TS} 3.8.4, DC Sources- Operating. On October 13, 2010, Entergy personnel identified the 31 battery charger (BC) had low and non-adjustable float voltage during the weekly battery inspection surveillance. That the same day, the 31 static inverter unexpectedly and automatically transferred to its alternate power source, and the installed spare battery charger was subsequently placed in service. Entergy staff completed an apparent cause evaluation (ACE) for this event on November 1, 2010. In the ACE, Entergy staff documented their determination that the 31 battery charger had been incapable of performing its safety function and classified the issue as a maintenance rule functional failure because the 31 battery charger had failed to provide reliable output voltage. Subsequent to the inspectors' questioning, Entergy personnel performed a past operability review and determined that the 31 battery charger was inoperable and left in service for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and 27 minutes, thus exceeding the TS AOT of two hours. Based on this review, Entergy personnel concluded that the condition met the criteria for reporting under 10 CFR 50.73 (a)(2)(i)(B) and that a 60-day report was required to have been submitted to the NRC. Entergy's completed corrective actions included the initiation of CR-IP3-2011-00092, and the performance of a past operability review. Planned corrective actions include the submittal of a licensee event report (LER) to the NRC. This violation involved a failure to make a required report to the NRC and is considered to impact the regulatory process. Such violations are dispositioned using the traditional enforcement process instead of the Significance Determination Process. Using the Enforcement Policy Section 6.9, Inaccurate and Incomplete Information or Failure to Make a Required Report, example (d}(8), which states A licensee fails to make a report required by 10 CFR 50.72 or 10 CFR 50.73, the NRC determined that this violation is more than minor and categorized as a Severity Level IV violation. Because this violation involves the traditional enforcement process with no underlying technical violation that would be considered more than minor in accordance with IMC 0612, a cross-cutting aspect is not assigned to this violation. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000286/2011002 Section 1R15 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | TEV: Severity level IV |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | C Newport E Gray J Noggle M Gray M Halter P Cataldo T O'Hara |
| INPO aspect | |
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Finding - Indian Point - IR 05000286/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2011Q1
Self-Identified List (Indian Point)
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