05000315/FIN-2017002-03
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Finding | |
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| Title | Failure to Identify Parts Subject to a Part 21 |
| Description | Green. A self -revealed finding and associated violation occurred on April 2, 2012, when the licensee failed to prevent installation of relays identified in a P art 21. Although the performance deficiency occurred in 2012, the consequence of the error did not manifest until March 2017, when a defective relay caused the Unit 2 control room indicating and display (CRID) 3 inverter to transfer and remain on the alternate power supply. Title 10 CFR 50 Appendix B, Criterion XV requires, in part, that Measures shall be established to control materials, parts, or components which do not conform to requirements in order to prevent their installation. Contrary to this requirement, on April 22, 2012, the licensee failed to prevent installation of an AMETEK board, PC 201 with a defective relay. This led to a failure of the CRID 3 inverter on March 27, 2012. The licensee replaced the circuit board and restored CRID 3 to an operable status. The inspectors determined that the failure to prevent installation of defective parts into the safety related CRID system was a performance deficiency that warranted a significance determination. Using Attachment 0609.04, Initial Characterization of 4 Findings, dated October 7, 2016, Table 2, the inspectors determined that the finding affected the Mitigating Systems cornerstone. As a result, the inspectors evaluated the finding using IMC 0609, Attachment 1 Exhibit 2, dated June 19, 2012. The inspectors answered no to all the questions, therefore the finding screened as Green. Using Attachment 0609.04, Initial Characterization of Findings, dated October 7, 2016, Table 2, the inspectors determined that the finding affected the Mitigating Systems cornerstone. The inspectors did not identify a cross- cutting aspect associated with this finding because it was not reflective of current performance. |
| Site: | Cook  |
|---|---|
| Report | IR 05000315/2017002 Section 1R15 |
| Date counted | Jun 30, 2017 (2017Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | J Ellegood T Taylor T Go V Petrella L Rodriguez B Dickson |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion XV |
| INPO aspect | |
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Finding - Cook - IR 05000315/2017002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Cook) @ 2017Q2
Self-Identified List (Cook)
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