05000331/FIN-2014004-01
Finding | |
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| Title | Failure to Perform Critical Equipment Failure Evaluations |
| Description | A finding of very low safety significance, with three examples, and no associated violation was identified by the inspectors for the licensees failure to accomplish procedure ER-AA-204-2005, Critical Equipment Failure Evaluation, Revision 5. Specifically, on July 11, 2014, the inspectors identified that a critical equipment failure evaluation (CEFE) was not performed following the testing failure of the cable spreading room carbon dioxide fire suppression (CARDOX) system. Although the apparent failure mechanism (solenoid valve (SV)-8521 pilot valve seal failure) was known, and repairs and successful testing was accomplished, a CEFE was not performed to review the adequacy of preventiv
maintenance bases, operating experience, and effectiveness of prior corrective actions During a subsequent extent of condition review, two additional instances of failing t perform CEFEs were identified associated with an A control building chiller pressur switch failure (safety function maintained) and a fuel pool temperature lost indicatio (compensatory measures invoked). The licensee entered the issue into the CAP a CR 01977645, performed a CEFE to create a preventive maintenance task for periodi replacement of SV-8521 based on prior failures, and briefed the corrective action program coordinators (CAPCOs) on equipment failure evaluation requirements. The inspectors determined that the issue of concern represented a performance deficienc because it was the result of the licensees failure to meet procedural requirements, and the cause was reasonably within the licensees ability to foresee and correct and should have been prevented. Section 4.1.1.A of ER-AA-204-2005, Critical Equipment Failur Evaluation, Revision 5, stated, in part, that a CEFE is required if the condition resulte from a FID 2 component failure that would have led to a FID 2 failure. The licensee did not perform a CEFE for the failure of pilot solenoid valve (SV)-8521. The performanc deficiency was determined to be more than minor and a finding because if left uncorrected, failing to conduct evaluations of equipment failures to develop appropriate corrective actions would have the potential to lead to a more significant safety concern. The inspectors utilized IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, and concluded that this findings significance was best characterized by using Appendix M, of IMC 0609, Significance Determination Process Using Qualitative Criteria. Based upon the fact that the three finding examples did not rise to a level of greater than very low safety significance, the inspectors determined that this issue was best characterized as having very low safety significance (Green). The inspectors determined that the performance characteristic of the finding that was the most significant causal factor of the performance deficiency was associated with the crosscutting aspect of Problem Identification and Resolution, Identification, and involving individuals identifying issues completely and accurately in accordance with the corrective action program. Specifically, for each example, condition reports initiated did not clearly identify that an equipment failure occurred which led to an improper screening by the CAPCOs such that CEFEs were not performed. [P.1] |
| Site: | Duane Arnold  |
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| Report | IR 05000331/2014004 Section 1R05 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | Finding: Green |
| cornerstone | Miscellaneous |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | B Palagi C Lipa C Zoia J Steffes L Haeg V Myers |
| CCA | P.1, Identification |
| INPO aspect | PI.1 |
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Finding - Duane Arnold - IR 05000331/2014004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Duane Arnold) @ 2014Q3
Self-Identified List (Duane Arnold)
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