05000219/FIN-2008003-03
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Finding | |
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| Title | Potential Preconditioning of Core Spray Valves Prior to ASME In-service Test |
| Description | The inspectors identified that AmerGen had scheduled surveillance tests in a sequence that would have resulted in unacceptable preconditioning of valves within the core spray system on May 19, 2008. This finding was determined not to be a violation of NRC requirements. AmerGens corrective actions involved reordering the scheduling sequence of the tests and reviewing upcoming (next 60 days) work control schedules to identify potential preconditioning. The finding was more than minor because it was associated with the equipment performance attribute of the mitigating systems cornerstone and affected the objective to ensure the reliability and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, preconditioning of valves could mask their actual as-found condition and result in an inability to verify their operability, as well as make it difficult to determine whether the valves would perform their intended safety function during an event. In accordance with IMC 0609.04, Phase 1 Initial Screening and Characterization of Findings, the finding was determined to be of very low safety significance because it was not a design or qualification deficiency which resulted in a loss of operability or functionality, did not represent a loss of system safety function, did not represent an actual loss of safety function of a single train for greater than its technical specification allowed outage time, did not represent an actual loss of safety function of one or more non-technical specification trains of equipment designated as risk-significant for greater than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, and was not potentially risk significant due to a seismic, flooding or severe weather initiating event. The performance deficiency had a cross-cutting aspect in the area of human performance because AmerGen did not appropriately coordinate work activities to support long term equipment reliability H.3(b). (Section 1R22 |
| Site: | Oyster Creek |
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| Report | IR 05000219/2008003 Section 1R22 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | M Ferdas R Nimitz J Commiskey R Bellamy O Ayegbiso J Heinly J Kulp J Schoppy |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Oyster Creek - IR 05000219/2008003 | |||||||||||||||||||||||||||||||||||||
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Finding List (Oyster Creek) @ 2008Q2
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