05000528/FIN-2011002-03
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Finding | |
|---|---|
| Title | Failure to Establish Adequate Procedures to Control Essential Chiller Compressor Oil Level |
| Description | The inspectors identified a noncited violation of Technical Specification 5.4.1, Procedures, for the failure of operations, engineering, and maintenance personnel to establish and implement procedures recommended in Regulatory Guide 1.33. Specifically, monitoring procedures and preventive maintenance schedules were not developed and implemented to ensure essential chiller oil reservoir level remained in the range to support chiller operability. The licensee has implemented operating procedure revisions and is currently evaluating preventive maintenance practices to preclude compressor oil level from reaching out of specification conditions. Engineering practices, operations procedures, and preventative maintenance schedules did not effectively manage chiller oil inventory and resulted in the chiller becoming inoperable on multiple occasions. The licensee entered the issue into the corrective action program as Palo Verde Action Request 3677610. The inspectors concluded the performance deficiency was more than minor because it affected the equipment performance attribute of the Mitigating Systems Cornerstone, and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Using NRC Manual Chapter 0609, Attachment 4, Initial Screening and Characterization of Findings, the inspectors determined the finding had 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. The inspectors determined this finding had a crosscutting aspect in the area of problem identification and resolution associated with the operating experience component because the licensee failed to institutionalize internal operating experience through changes to station processes, procedures, and equipment [P.2.(b)]. |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2011002 Section 1R15 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.15 |
| Inspectors (proximate) | R Lantz M Brown R Kopriva L Carson M Young J Bashore M Baquera D Graves B Rice N Greene |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Palo Verde - IR 05000528/2011002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2011Q1
Self-Identified List (Palo Verde)
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