05000528/FIN-2008002-03
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Finding | |
|---|---|
| Title | Inadequate Procedure to Evaluate Foreign Material in the Spent Fuel Pool (Section 4OA2) |
| Description | The inspectors identified a non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, \\\"Instructions, Procedures, and Drawings,\\\" for the failure of fuels services personnel to evaluate leaving foreign material in the Unit 2 spent fuel pool in accordance with procedures, and failed to ensure those procedures included appropriate quantitative and qualitative acceptance criteria. Specifically, between October 13, 2006, and January 31, 2008, fuels services personnel used Procedure 30DP-9MP03, \\\"System Cleanliness and Foreign Material Exclusion Controls,\\\" Revision 6, which did not specify acceptance criteria for time to perform a functional assessment of foreign material in the spent fuel pool, resulting in foreign material being left in the spent fuel pool for greater than one year without an evaluation on affected safety systems. This issue was entered into the licensee\\\'s corrective action program as Palo Verde Action Request 3126308. This finding is greater than minor because it is associated with the structure, systems, and component performance and human performance attributes of the barrier integrity cornerstone and affects the cornerstone objective to provide reasonable assurance that physical design barriers (fuel cladding, reactor coolant system, and containment) protect the public from radionuclide releases caused by accidents or events. Using the Manual Chapter 0609, \\\"Significance Determination Process,\\\" Phase 1 Worksheets, the finding is determined to have very low safety significance because the finding did not result in loss of cooling to the spent fuel pool; the finding did not result from fuel handling errors that caused damage to the fuel clad integrity or a dropped assembly; and the finding did not result in a loss of spent fuel pool inventory greater than ten percent of the spent fuel pool volume. This finding has a crosscutting aspect in the area of human performance associated with decision-making because the licensee failed to use conservative assumptions when evaluating degraded and nonconforming conditions [H.1.(b)]. (Section 4OA2 |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2008002 Section 4OA2 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | NCV: Green |
| cornerstone | Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | R Treadway P Elkmann G Werner L Carson J Melfi G Warnick M Hay J Bashore M Catts |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Palo Verde - IR 05000528/2008002 | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2008Q1
Self-Identified List (Palo Verde)
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