05000528/FIN-2009006-08
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Finding | |
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Title | Failure to Promptly Identify and Correct a Condition Adverse to Quality with the Emergency Core Cooling System Piping |
Description | A self-revealing noncited violation of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, was identified for the failure of the licensee to promptly identify and correct a condition adverse to quality associated with the high pressure safety injection system piping. Specifically, between January 18, 1989, and October 12, 2006, the licensee failed to ensure that select sections of Unit 1 high pressure safety injection Train B piping were inspected to prevent erosion due to cavitation. This resulted in a through-wall leak in the high pressure safety injection Train B recirculation line. This issue was entered into the licensees corrective action program as Condition Report/Disposition Request 2932507.The performance deficiency associated with this finding involved the licensees failure to promptly identify and correct a condition adverse to quality associated with the high pressure safety injection system piping. The finding is greater than minor because it is associated with the equipment performance attribute of the mitigating systems cornerstone and affects the associated cornerstone objective to ensure the reliability and availability of systems that respond to initiating events. 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 was evaluated as not having a crosscutting aspect because the performance deficiency is not indicative of current performanc |
Site: | Palo Verde |
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Report | IR 05000528/2009006 Section 4OA5 |
Date counted | Mar 31, 2009 (2009Q1) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Self-revealing |
Inspection Procedure: | |
Inspectors (proximate) | N Taylor D Dumbacher R Rodriguez E Knutson R Walton D Proulx D Bollock M Catts E Ruesch A Vegel H Freeman |
INPO aspect | |
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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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