05000255/FIN-2014004-02
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Finding | |
|---|---|
| Title | Spent Fuel Pool Region II Criticality Analysis |
| Description | The inspectors identified a finding of very low safety significance and an associated non-cited violation of 10 CFR 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, when licensee personnel failed to follow procedure EN-OP-104, Operability Determination Process. Specifically, Operability Evaluation CR-PLP-2013-04775 failed to include adequate technical information to support the basis for the reasonable expectation of operability, as required by Step 5.5.c of EN-OP-104. On March 25, 2014, the licensee entered the NRC questions into the CAP as Assignments 6 and 7 of CR-PLP-2013-04775, Issues Identified with Region II of SFP Criticality Analysis, with an initial due date of April 8, 2014. Both Assignments 6 and 7 were ultimately closed in late April to a new Assignment 9, which was created to complete a revised Operability Evaluation. The licensee determined that contracted technical support was necessary to adequately evaluate the NRC concerns. At the end of the inspection period, the contracted evaluation effort was ongoing. Planned corrective actions included documenting the conclusions of the ongoing evaluation in a revised Operability Evaluation for CR-PLP-2013-04775. The inspectors determined that the performance deficiency was more than minor because it was associated with the Configuration Control attribute of the Barrier Integrity Cornerstone and adversely impacted the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. Specifically, the Spent Fuel Pool (SFP) criticality analysis relied on certain physical conditions to maintain the effective neutron multiplication factor below 1.0, but actual physical conditions were not completely bounded by the existing criticality analysis. Because the inspectors answered No to all of the SFP questions in IMC 0609, Appendix A, Exhibit 3, Barrier Integrity Screening Questions, the finding was determined to be of very low safety significance. This finding was associated with a cross-cutting aspect of Operating Experience in the Problem Identification and Resolution cross-cutting area. Specifically, the licensee failed to collect and implement relevant external operating experience. |
| Site: | Palisades  |
|---|---|
| Report | IR 05000255/2014004 Section 1R15 |
| Date counted | Sep 30, 2014 (2014Q3) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | A Garmoe A Scarbeary E Duncan J Cassidy J Lennartz T Bilik |
| Violation of: | 10 CFR 50 Appendix B Criterion V |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Palisades - IR 05000255/2014004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palisades) @ 2014Q3
Self-Identified List (Palisades)
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