05000247/FIN-2014005-06
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | On February 24, 2014, Entergy personnel determined that a condition prohibited by Unit 2 TSs existed when a pinhole leak from a drain valve body was identified which resulted in an inoperable 23 SG. TS 3.4.4 requires during Mode 1 and 2 that four RCS loops be operable or be in Mode 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Contrary to the above, prior to February 24, Indian Point Unit 2 operated in Modes 1 and 2 with an inoperable SG when a pinhole leak from a valve body on the 23 SG existed in excess of 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> without entering Mode 3. Although attempts had been made to identify the source of a small secondary leak in containment during plant operation, the drain valve was not accessible with the reactor in operation and plant shutdown was required to complete the inspection on February 24, 2014. No performance deficiency was identified because it was not reasonable for Entergy to foresee and prevent the pinhole leak. The leak when found was documented in CR-IP2-2014-0975, and the valve was replaced. The violation was more than minor because it impacted the Equipment Performance attribute of the Initiating Events cornerstone. The issue screened to be of very low safety significance (Green) using IMC 0609, Appendix A when loss of coolant analysis assumptions and equipment performance were not affected by the degradation. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2014005 Section 4OA7 |
| Date counted | Dec 31, 2014 (2014Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Burritt A Patel C Lally D Silk D Simpkins E Knutson G Newman J Brand J Furia J Petch J Stewart |
| Violation of: | Technical Specification |
| INPO aspect | |
| ' | |
Finding - Indian Point - IR 05000247/2014005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Indian Point) @ 2014Q4
Self-Identified List (Indian Point)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||