05000528/FIN-2008004-05
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Finding | |
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| Title | |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion V, \"Instructions, Procedures, and Drawings,\" for the failure of operations and chemistry personnel to follow the corrective action program to ensure that potentially nonconforming conditions associated with the essential spray pond system were reviewed for operability. Specifically, between July 10, 2008, and July 11, 2008, operations and chemistry personnel failed to ensure all relevant information was reviewed for operability when the Unit 2 essential spray Pond A hypochlorite addition Valve 2-SPN-V494 was found open. This resulted in the essential spray pond chemistry pH and chlorine samples being delayed to the extent that the sample results were not reliable to assess operability. This issue was entered into the licensee\'s corrective action program as Condition Report/Disposition Request 3206115. The finding is greater than minor because it is associated with the equipment performance attribute of the mitigating systems cornerstone and affects the cornerstone objective of ensuring the reliability of systems that respond to initiating events to prevent undesirable consequences. Using Manual Chapter 0609.04, \"Phase 1 Initial Screening and Characterization of Findings,\" the finding was determined to have a very low safety significance because the finding did not result in a loss of system safety function, an actual loss of safety function of a single train for greater than its technical specification allowed outage time, or screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. This finding has a crosscutting aspect in the area of human performance associated with decision-making because safety-significant decisions were not verified to validate underlying assumptions and identify unintended consequences H.1(b) (Section 1R15). |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2008004 Section 1R15 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | P Goldberg R Treadway B Henderson T Mckernon J Melfi D Proulx G Apger A Fairbanks J Bashore M Bloodgood M Catts T Buchanan |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Palo Verde - IR 05000528/2008004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2008Q3
Self-Identified List (Palo Verde)
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