05000461/FIN-2016002-05
From kanterella
Revision as of 07:56, 25 September 2017 by StriderTol (talk | contribs) (Created page by program invented by Mark Hawes)
Finding | |
|---|---|
| Title | Lack of Acceptance Criteria for Containment Visual Examinations |
| Description | The inspectors identified a finding of very-low safety significance and associated NCV of 10 CFR 50.55a(g)(4). Specifically, the licensee failed to define acceptance criteria for containment visual examinations. Consequently, active containment liner degradation on a containment penetration was identified and returned to service without comparing to defined acceptance criteria. The licensee verified through visual examination that the liner thickness was marginally affected by the corrosion and documented this issue in the Corrective Action System in AR 02671728. The inspectors determined that the failure to define and incorporate acceptance criteria in the containment visual examination procedure as required by 10 CFR 50.55a(g)(4) was a performance deficiency. The inspectors determined that this issue was more than minor in accordance with IMC 0612, Appendix B, Issue Screening, dated September 7, 2012, because the inspectors answered yes to the more than minor question If left uncorrected, would the performance deficiency have the potential to lead to a more significant safety concern in that active containment penetration degradation may not be properly evaluated and/or promptly corrected. Specifically, the inspectors were concerned that without acceptance standards, unacceptable containment degradation may be returned to service and adversely affect containment leakage or structural integrity. The inspectors determined this finding was of very-low safety significance (Green) based on answering no to Questions B.1 and B.2 of the Exhibit 3, Barrier Integrity Screening Questions, in IMC 0609, Attachment A, The Significance Determination Process (SDP) for Findings At-Power, issued on June 19, 2012. Specifically, the inspectors answered no to the screening question associated with an actual open pathway (e.g., breach) in the containment and no to the question associated with reduction in function of hydrogen igniters in containment. A subsequent visual examination performed by the licensee confirmed only marginal degradation of the liner thickness. The inspectors determined that this finding had a cross-cutting aspect in the area of human performance in the aspect of consistent process, where individuals use a consistent, systematic approach to make decisions. Specifically, the lack of acceptance criteria allowed various interpretations for disposing of identified conditions that were inconsistent. (H.13) |
| Site: | Clinton  |
|---|---|
| Report | IR 05000461/2016002 Section 1R08 |
| Date counted | Jun 30, 2016 (2016Q2) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.08 |
| Inspectors (proximate) | C Phillips E Sanchez -Santiago G Edwards J Wojewoda K Stoedter L Smith S Bell S Mischke T Bilik W Schau |
| Violation of: | 10 CFR 50.55a |
| CCA | H.13, Consistent Process |
| INPO aspect | DM.1 |
| ' | |
Finding - Clinton - IR 05000461/2016002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Clinton) @ 2016Q2
Self-Identified List (Clinton)
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||