05000331/FIN-2014009-01
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Finding | |
|---|---|
| Title | Inadequately Performed Drawing Revision Related to CAPR |
| Description | The inspectors identified a finding of very low safety significance and an associated non-cited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the failure to assure that a safety-related drawing for the High Pressure Coolant Injection (HPCI) system was accurate. Specifically, a corrective action to prevent recurrence for the RCIC system failure required that the HPCI system drawing be changed to accurately reflect the system configuration. The licensee changed the drawing, but not so that it accurately reflected the system configuration. The licensee initiated Condition Report (CR) 1977172 to document the inaccuracy of the HPCI drawing and track completion of a document change request to revise the drawing to show the proper relationship between the HPCI governor speed control and the turbine speed indicator in the control room. Additionally, the licensee directed Design Engineering to perform an apparent cause evaluation to determine why the drawings did not accurately reflect the relationship between speed sensor and speed indicator, and why the HPCI drawing was not revised to clarify the interrelationships as was done on the RCIC drawing. The performance deficiency was determined to be more than minor because in accordance with IMC 0612, Appendix B, if left uncorrected it would have the potential to lead to a more significant safety concern. Specifically, the HPCI drawing change was part of a corrective action to prevent recurrence of a significant condition adverse to quality. The inspectors screened the finding using IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, dated June 19, 2012, and Appendix A, The Significance Determination Process for Findings At-Power, dated June 19, 2012, Exhibit 2, Mitigating Systems Screening Questions. The inspectors determined the finding was related to a design deficiency that did not result in a loss of a safety system or function, and is therefore a finding of very low safety significance. The inspectors determined that the finding had a cross cutting aspect in the area of problem identification and resolution, specifically evaluation, because licensee personnel failed to thoroughly evaluate issues to ensure that the resolutions address causes and extent of conditions commensurate with their safety significance. |
| Site: | Duane Arnold  |
|---|---|
| Report | IR 05000331/2014009 Section 4OA4 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 95002 |
| Inspectors (proximate) | A Scarbeary B Bartlett C Lipa C Phillips J Steffes M Jones R Baker |
| Violation of: | 10 CFR 50 Appendix B Criterion III, Design Control |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Duane Arnold - IR 05000331/2014009 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Duane Arnold) @ 2014Q3
Self-Identified List (Duane Arnold)
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