05000528/FIN-2008005-01
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Finding | |
|---|---|
| Title | Failure to Promptly Identify and Correct Degraded Hydrostatic Penetration Seals |
| Description | The inspectors identified a finding at Palo Verde Nuclear Generating Station Procedure 01DP-0AP10, Corrective Action Program, Revision 1, for the failure of operations and engineering personnel to promptly identify and correct a condition adverse to quality. Specifically, between February 13, 2007 and July 18, 2008, operations and engineering personnel failed to identify and correct degraded hydrostatic flood penetration seals which provide protection to safety-related equipment during internal flooding events. This resulted in over100 hydrostatic penetration seals in the control, diesel, and main steam support structure buildings being left degraded for greater than 12 months. This issue was entered into the licensee\'s corrective action program as Palo Verde Action Request 3264501. The finding is greater than minor because it is associated with the protection against external factors (i.e. flood hazard) attribute of the mitigating systems cornerstone and affects the cornerstone objective of ensuring the reliability and capability 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 problem identification and resolution associated with operating experience because operations and engineering personnel failed to implement and institutionalize operating experience through changes to station processes, procedures, equipment, and training programs P.2(b) (Section 1R06) |
| Site: | Palo Verde  |
|---|---|
| Report | IR 05000528/2008005 Section 1R06 |
| Date counted | Dec 31, 2008 (2008Q4) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.06 |
| Inspectors (proximate) | L Ricketson G Guerra R Treadway P Elkmann S Graves D Allen J Melfi W Sifre M Young D Proulx A Fairbanks J Bashore S Makor M Catts C Ryan T Buchanan A Vegel I Anchando |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Palo Verde - IR 05000528/2008005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Palo Verde) @ 2008Q4
Self-Identified List (Palo Verde)
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