05000528/FIN-2009006-03
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Finding | |
|---|---|
| Title | Failure to Perform 10 CFR 50.59 Screenings on Scaffolds Installed for Greater Than 90 Days |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50,Appendix B, Criterion V, Instructions, Procedures, and Drawings, when, on February 10, 2009, it was determined that 62 scaffolds that did not comply with the engineering installation specification had been in place in the three units in excess of 90 days, and that these scaffold installations had not been screened in accordance with 10 CFR 50.59, nor had these nonconforming conditions been evaluated for their potential impact on equipment operability. As immediate corrective action, Palo Verde Nuclear Generating Station informed the applicable control room operators of the 62 nonconforming conditions and operability assessments were performed under Palo Verde Action Requests 3283371,3283489, and 3281680. Additionally, Palo Verde Nuclear Generating Station initiated Palo Verde Action Request 3283865 to perform 10 CFR 50.59screenings on the 62 non-compliant scaffolds. The finding was more than minor because it is associated with the mitigating systems cornerstone attribute for protection against external factors and affected the cornerstone objective of ensuring the availability and reliability of systems that respond to initiating events to prevent undesirable consequences. The finding, associated with the mitigating systems cornerstone, was evaluated in accordance with Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings, and determined to be of very low safety significance per the Significance Determination Process because the finding was not a design or qualification deficiency, did not represent a loss of a system/train safety function, and did not screen as potentially risk significant due to external events. The finding had a crosscutting aspect in the human performance component of resources because Palo Verde Nuclear Generating Station did not ensure that adequate personnel were assigned to ensure that long term scaffold installations remained compliant with applicable procedural requirements (H.2.a |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2009006 Section 4OA2 |
| Date counted | Mar 31, 2009 (2009Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | N Taylor D Dumbacher R Rodriguez E Knutson R Walton D Proulx D Bollock M Catts E Ruesch A Vegel H Freeman |
| CCA | H.6, Design Margins |
| INPO aspect | WP.2 |
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Finding - Palo Verde - IR 05000528/2009006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2009Q1
Self-Identified List (Palo Verde)
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