05000336/FIN-2010005-03
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Finding | |
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Title | Licensee-Identified Violation |
Description | TS 3.7.2.1 states that the TDAFW pump has an allowable outage time of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. TS 4.0.1 requires that the licensee shall declare the TDAFW pump to be inoperable if the pump fails a surveillance test required by TSs. Contrary to this requirement, the TDAFW pump failed a surveillance test on June 30, 2010, and was inoperable for a period of approximately 54 days, which exceeded the TS allowable outage time. Dominion was not aware of the surveillance test failure until an extent of condition review triggered by another failed surveillance test on August 19, 2010, revealed that the TDAFW pump had failed the earlier test. Upon discovery, Dominion restored operability by repairing 3FWA RV45 and placed the condition in the CAP (CR392003 and CR392155). This finding is of very low safety significance because the TDAFW pump was available to fulfill its safety function during the period of time that it was inoperable. |
Site: | Millstone |
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Report | IR 05000336/2010005 Section 4OA7 |
Date counted | Dec 31, 2010 (2010Q4) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | Licensee-identified |
Inspection Procedure: | |
Inspectors (proximate) | T Moslak J Caruso D Jackson S Pindale B Haagensen B Welling P Presby J Krafty S Shaffer J Johnson |
INPO aspect | |
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Finding - Millstone - IR 05000336/2010005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Millstone) @ 2010Q4
Self-Identified List (Millstone)
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