05000282/FIN-2010003-06
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Finding | |
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Title | Licensee-Identified Violation |
Description | Criterion V to 10 CFR Part 50, Appendix B, requires that activities affecting quality be prescribed by instructions, procedures and drawings appropriate to the circumstance. Contrary to the above, on May 19, 2010, the procedure for testing the 21 and 22 residual heat removal pump suction line check valves, SP 2369, was not appropriate to the circumstance. Specifically, the procedure was not written to appropriately account for system and testing configuration changes made to address previously identified voiding issues. As a result, the test failed to meet the pre-established acceptance criteria. This issue was documented in CAP 1233577. Corrective actions for this issue included revising the testing methodology to account for the system and test configuration changes and successfully re-performing the test. The licensee also planned to review other procedure changes made to address the voiding issue. The inspectors determined that the failure to have a procedure appropriate to the circumstance was a performance deficiency that required an SDP evaluation. The inspectors determined that this finding was of very low safety significance (Green) because it was not a design or qualification deficiency, it did not represent a loss of safety function, and it did not screen as potentially risk significant due to a seismic, flooding or severe weather initiating event. |
Site: | Prairie Island ![]() |
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Report | IR 05000282/2010003 Section 4OA7 |
Date counted | Jun 30, 2010 (2010Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | R Langstaff R Orlikowski M Phalen K Stoedter D Jones L Haeg R Lerch P Zurawski D Betancourt |
INPO aspect | |
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Finding - Prairie Island - IR 05000282/2010003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Prairie Island) @ 2010Q2
Self-Identified List (Prairie Island)
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