05000528/FIN-2008002-02
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Finding | |
|---|---|
| Title | Two Examples of a Failure to Properly Implement the Systematic Troubleshooting Process (Section 1R19) |
| Description | The inspectors identified two examples of a non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, \\\"Instructions, Procedures and Drawings,\\\" for the failure of operations, engineering, and maintenance personnel to follow procedures for troubleshooting failures of safety-related components. Specifically, between January 8 and January 13, 2008, operations, engineering, and maintenance personnel failed to incorporate the adequate level of detail into their troubleshooting plans for the Unit 3 auxiliary feedwater trip and throttle Valve AFA-HV-0054 when it failed to fully close upon demand from the control room hand switch, and for the Unit 3 log power Channel A when induced noise was present. These issues were entered into the licensee\\\'s corrective action program as Palo Verde Action Requests 3120075 and 3118744. This finding is greater than minor because it is associated with the equipment performance attribute of the mitigating systems cornerstone and affects the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using the Manual Chapter 0609, \\\"Significance Determination Process,\\\" Phase 1 Worksheets, the finding is determined to have very low safety significance because it did not represent 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. Both examples have a crosscutting aspect in the area of human performance associated with decision-making because the licensee did not obtain appropriate interdisciplinary input and reviews on safety-significant or risk-significant decisions H.1(a). (Section 1R1 |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2008002 Section 1R19 |
| Date counted | Mar 31, 2008 (2008Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.19 |
| 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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