05000255/FIN-2013005-01
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Finding | |
|---|---|
| Title | Failure to Complete a Transient Combustible Evaluation |
| Description | An NRC-identified finding of very low safety significance and an associated non-cited violation (NCV) of Technical Specification (TS) 5.4.1, Procedures, was identified by the inspectors when licensee personnel failed to complete a transient combustible evaluation as required by procedure EN-DC-161, Control of Combustibles. Specifically, transient combustible materials in use for work activities associated with the Spent Fuel Pool Cooling Heat Exchangers were being stored in the Auxiliary Building 590 corridor, a Level 1 Combustible Control Zone, without having a required transient combustible evaluation completed prior to (or during) the work. The licensee entered this issue into their Corrective Action Program (CAP) as Condition Report (CR) PLP-2013-04905, performed a Level 1 Human Performance Evaluation, and removed the materials after the work was completed. The inspectors determined that the performance deficiency was more than minor because it was associated with the Protection Against External Factors attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e. core damage). Additionally, it was similar to the not minor if statement of Example 4.k in IMC 0612, Appendix E. This example stated that an issue was not minor if a credible fire scenario involving the identified transient combustibles could affect equipment important to safety. For this issue, transient combustible materials in use for work in progress were being stored in a Level 1 area where a fire could affect equipment important to safety, and a transient combustible evaluation had not been completed as required by licensee procedures. The finding had a cross-cutting aspect in the Work Practices component of the Human Performance cross-cutting area because workers failed to validate the combustible control zone classification of the work area during the planning and preparation phase of the project, resulting in the group not obtaining a transient combustible evaluation for the work area prior to commencing work. Contributing to this was ineffective change management communication for the newest revision to EN-DC-161, which re-classified many areas of the plant into different combustible control zones. |
| Site: | Palisades  |
|---|---|
| Report | IR 05000255/2013005 Section 1R05 |
| Date counted | Dec 31, 2013 (2013Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | A Scarbeary E Duncan E Sanchez Santiago J Cassidy J Laughlin M Holmberg M Phalen N Feliz Adomo T Taylor |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | H.9, Training |
| INPO aspect | CL.4 |
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Finding - Palisades - IR 05000255/2013005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palisades) @ 2013Q4
Self-Identified List (Palisades)
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