05000282/FIN-2010002-03
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Finding | |
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| Title | Failure to Have Adequate Procedure for Testing Valve CC-5-2 |
| Description | A self-revealed finding of very low safety significance and a Non-Cited Violation of Technical Specification 5.4.1 were identified on January 27, 2010, when the licensee failed to establish an appropriate procedure for testing component cooling water pump return check valve CC-5-2. As a result, additional system inoperability and unavailability time were accumulated until the procedural inadequacies could be addressed and the procedure was performed successfully. Corrective actions included revising the test procedures to incorporate an improved test method and re-testing valve CC-5-2. The inspectors determined that this finding was more than minor because it was associated with the equipment performance attribute of the Mitigating Systems cornerstone and impacted the cornerstone objective of ensuring the availability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the failure to establish an appropriate test procedure resulted in an additional 34 hours3.935185e-4 days <br />0.00944 hours <br />5.621693e-5 weeks <br />1.2937e-5 months <br /> of system inoperability/unavailability. This finding was determined to be of very low safety significance because it was not a design deficiency, did not result in a loss of system safety function, was not an actual loss of safety function of one train of equipment for greater than the Technical Specification allowed outage time, and did not screen as a potentially significant seismic, flooding, or severe weather issue. The inspectors determined that this finding was cross-cutting in the Problem Identification and Resolution, Corrective Action area, because the licensee did not thoroughly evaluate a November 2009 problem with valve CC-5-2 such that the resolution addressed the cause and extent of the condition (P.1(c)). (Section 1R22.1 |
| Site: | Prairie Island  |
|---|---|
| Report | IR 05000282/2010002 Section 1R22 |
| Date counted | Mar 31, 2010 (2010Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.22 |
| Inspectors (proximate) | A Dunlop D Mcneil B Palagi M Phalen K Stoedter P Zurawski D Betancourt J Giessner |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
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Finding - Prairie Island - IR 05000282/2010002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2010Q1
Self-Identified List (Prairie Island)
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