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Licensee Event Report, Letter  and Licensee Event Report (LER)

10 CFR 50.73 +, 10 CFR 50.73#a2ivA +, 10 CFR 50.73#a2vD +  and 10 CFR 50.73#a2vC +

05000461  +  and 00461  +

Noll W +  and Exelon +

05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +, 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +  and 05000461/LER-2012-003, Regarding Breaker Failure Leads to Loss of Safety Function and System Start +

0.0232 d (0.557 hours, 0.00332 weeks, 7.629025e-4 months)  +, 0.0233 d (0.558 hours, 0.00332 weeks, 7.644245e-4 months)  +, 0.0233 d (0.559 hours, 0.00333 weeks, 7.651855e-4 months)  +, 0.0233 d (0.559 hours, 0.00333 weeks, 7.659465e-4 months)  +, 0.0257 d (0.617 hours, 0.00367 weeks, 8.45471e-4 months)  +, 0.026 d (0.624 hours, 0.00372 weeks, 8.55364e-4 months)  +  and 2.893519e-4 d (0.00694 hours, 4.133598e-5 weeks, 9.5125e-6 months)  +

10 CFR 50.73(a)(2)(iv)(A), System Actuation +, 10 CFR 50.73(a)(2)(ii)(B), Unanalyzed Condition +, 10 CFR 50.73(a)(2)(v)(A), Loss of Safety Function - Shutdown the Reactor +, 10 CFR 50.73(a)(2)(v)(B), Loss of Safety Function - Remove Residual Heat +, 10 CFR 50.73(a)(2)(v), Loss of Safety Function +, 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability +, 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications +, 10 CFR 50.73(a)(2)(i) +, 10 CFR 50.73(a)(2)(x) +, 10 CFR 50.73(a)(2)(ii)(A), Seriously Degraded +, 10 CFR 50.73(a)(2)(iii) +, 10 CFR 50.73(a)(2)(i)(A), Completion of TS Shutdown +, 10 CFR 50.73(a)(2)(ix)(A), Prevented Safety Function in Multiple System +, 10 CFR 50.73(a)(2)(viii)(A) +  and 10 CFR 50.73(a)(2)(viii)(B) +

Secondary containment +, Service water +, Reactor Core Isolation Cooling +, High Pressure Core Spray +, Core Spray +  and Standby Gas Treatment System +

Document Control Desk +  and Office of Nuclear Reactor Regulation +

https://lersearch.inl.gov/Index.aspx?Page=PDFView?Doc::4612012003R00.pdf  +  and http://pbadupws.nrc.gov/docs/ML1303/ML13031A006.pdf  +