05000315/FIN-2017001-04
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Finding | |
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| Title | Licensee-Identified Violation |
| Description | In LER 05000315 2015 004, the licensee identified multiple violations of TS 3.4.11, which requires each PORV and associated block valve to be operable. The licensee identified that on 3 occasions for Unit 1 and 4 for Unit 2 that one PORV was not operable when the supporting control air compressor was out of service. In these 7 cases, the licensee failed to close the associated block valve within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, as required by Condition B. Further, the licensee also failed to 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 /> and in some cases mode 4 as required by Condition H. The licensee failed to meet these requirements as follows: Unit 1: February 27, 2013 November 8, 2014 May 6, 2015 Unit 2: May 14, 2013 January 16, 2014 31 March 24, 2015 May 4, 2015 Th e inspectors evaluated the condition in accordance with IMC 0612, Appendix B and determined the issue was more than minor because it adversely affected the mitigating system cornerstone objective of ensuring the availability of systems that respond to initiating events. The inoperability impacted the equipment performance attribute of availability. Using IMC 0609, Appendix A , Exhibit 2, the inspectors answered all the questions no; therefore, the inspectors determined the finding was of very low safety significance. The licensee documented the issue in AR 2015 11204. |
| Site: | Cook  |
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| Report | IR 05000315/2017001 Section 4OA7 |
| Date counted | Mar 31, 2017 (2017Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | G Edwards J Ellegood K Riemer M Holmberg T Go T Taylor |
| Violation of: | Technical Specification |
| INPO aspect | |
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Finding - Cook - IR 05000315/2017001 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cook) @ 2017Q1
Self-Identified List (Cook)
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