05000247/FIN-2010003-02
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | TS 3.7.1, main steam safety valves (MSSVs), requires that MSSVs shall be operable, which, in part, is specifically met if as-found lift setpoints are within applicable acceptance criteria during in-service testing. Contrary to this requirement, on March 9, 2010, during performance of MSSV testing, Entergy personnel identified that MS- 45C and MS-48C exceeded as-found lift set pOints. Entergy technicians subsequently performed satisfactory adjustments and as-left testing to ensure operability was restored. Entergy documented this issue in the corrective action program for resolution under condition report CR-IP2-2009-01181. In addition, Entergy personnel analyzed the past operability and associated impact on the safety analysis with two MSSVs potentially lifting at greater than allowable setpoints and concluded that the condition would not have prevented the accident mitigation capability of the MSSVs overpressure function. Although two MSSVs were determined to be inoperable for an unknown duration, and potentially longer than the allowed outage time listed in the Unit 2 technical specifications, the inspectors determined that this finding is of very low safety significance because it did not increase the probability or consequences of any anticipated operational occurrence or accidents covered by the safety analysis. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2010003 Section 4OA7 |
| Date counted | Jun 30, 2010 (2010Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | O Ayegbiso P Cataldo S Mccarver B Haagensen D Molteni J Noggle M Gray N Sieller |
| INPO aspect | |
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Finding - Indian Point - IR 05000247/2010003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2010Q2
Self-Identified List (Indian Point)
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