05000336/FIN-2010004-06
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Finding | |
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Title | LICENSEE-IDENTIFIED Violation |
Description | 10 CFR 50 Appendix B, Criterion III, Design Control requires, in part, that measures shall be established to assure that the applicable design basis for structures, systems, and components, are correctly translated into specifications, drawings, procedures, and instructions. Contrary to this, from approximately 1995 until August 13, 2010, Dominion failed to ensure that the design basis for the reactor coolant system was maintained when it specified and installed flex hoses with an insufficient pressure rating. Upon discovery, Dominion entered the issue into their corrective action program (CR 390963), shutdown the plant, and replaced the hoses with flex hoses of the proper pressure rating. The finding is of very low safety significance because a failure of the hose would have resulted in a leak that was within the capability of the charging pumps. |
Site: | Millstone ![]() |
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Report | IR 05000336/2010004 Section 4OA7 |
Date counted | Sep 30, 2010 (2010Q3) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | T Moslak D Jackson B Haagensen J Krafty S Shaffer M Balazik L Kauffman K Modes |
INPO aspect | |
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Finding - Millstone - IR 05000336/2010004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Millstone) @ 2010Q3
Self-Identified List (Millstone)
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