05000331/FIN-2014004-02
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Hydraulic Control Unit Configuration Control Error |
| Description | A finding of very low safety significance and associated non-citied violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was self-revealed for the licensees failure to accomplish procedure OP-AA-101-1000, Clearance and Tagging, Revision 10. Specifically, on July 21, 2014, the licensee failed to ensure that clearance isolation 5500-1T221(34-19) for hydraulic control unit (HCU) 34-19 was appropriate for the requested work scope and that all applicable Technical Specification actions were entered. After receiving a high temperature alarm associated with HCU 34-19, the licensee incorrectly concluded that the alarm was expected. During a walk down by an operator on the subsequent shift, it was determined that HCU 34-19 was improperly tagged out as revealed by the temperature alarm, and that control rod 34-1
should have been declared inoperable instead of slow. The licensee entered the issue into the corrective action program (CAP) as condition report (CR) 01979472, and invoke corrective actions to brief all licensed operators on the event, updated procedures to clearly define clearance reviewer responsibilities, and made changes to the HCU operating instructions to recognize applicable Technical Specification (TS) Required Actions. The inspectors determined that the issue of concern represented a performance deficiency because it was the result of the licensees failure to meet a procedural requirement, and the cause was reasonably within the licensees ability to foresee and correct and should have been prevented. The licensee failed to properly accomplish procedure OP-AA-101-1000, Clearance and Tagging, Revision 10, to ensure that a clearance isolation for HCU 34-19 was appropriate for the requested work scope and that all applicable TS actions were entered. The performance deficiency was determined to be more than minor and a finding because it impacted the Mitigating Systems Cornerstone Attribute of Configuration Control, and adversely affected the Cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors applied IMC 0609, Attachment 4, Initial Characterization of Findings, to this finding. The inspectors answered No to all questions within Table 3 SDP Appendix Router, and transitioned to IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power. Because the inspectors answered No to questions 1-3 of Section C Reactivity Control Systems of Exhibit 2 Mitigating Systems Screening Questions, the finding screened as 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 cross-cutting aspect of Human Performance, Work Management, and involving the organization implementing a process of planning, controlling, and executing work activities such that nuclear safety is the overriding priority. Specifically, the clearance preparer, reviewer and approver for the clearance isolation of HCU 34-19 failed to properly implement the clearance and tagging process to ensure the proper isolation was made and the applicable TS actions were entered. [H.5] |
| Site: | Duane Arnold  |
|---|---|
| Report | IR 05000331/2014004 Section 1R13 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.13 |
| Inspectors (proximate) | B Palagi C Lipa C Zoia J Steffes L Haeg V Myers |
| Violation of: | 10 CFR 50 Appendix B Criterion V Technical Specification Technical Specification - Procedures |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
| ' | |
Finding - Duane Arnold - IR 05000331/2014004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Duane Arnold) @ 2014Q3
Self-Identified List (Duane Arnold)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||