05000327/FIN-2016008-01
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Finding | |
|---|---|
| Title | Failure to Maintain Design Control of MSIV Controls |
| Description | A self-revealing non-cited violation of Title 10 of the Code of Federal Regulations (10 CFR) 50, Appendix B, Criterion III, Design Control, was identified for the licensees failure to maintain design control of MSIV 1-FCV-1-22 controls. Specifically, inadequate design controls led to an under tightened electrical connection following replacement of the Unit 1 MSIV Control Room handswitch (1-HS-1-22A). The licensee entered the condition into the CAP as CR 1107656 and has corrected the loose wiring connection on 1-HS-1-22A. The finding was determined to be more than minor because it adversely impacted the Design Control attribute of the initiating events cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The inspectors reviewed IMC 0609, Attachment 4 and determined that the finding was of very low safety significance (Green) because it did not contribute to both the likelihood of a reactor trip and the likelihood that mitigating systems will not be available. No cross-cutting aspect was assigned to this finding because the performance deficiency is not reflective of current licensee performance. |
| Site: | Sequoyah  |
|---|---|
| Report | IR 05000327/2016008 Section 4OA3 |
| Date counted | Mar 31, 2016 (2016Q1) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | A Blamey C Kontz |
| Violation of: | 10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion III, Design Control |
| INPO aspect | |
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Finding - Sequoyah - IR 05000327/2016008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Sequoyah) @ 2016Q1
Self-Identified List (Sequoyah)
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