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

10 CFR 50.73 +, 10 CFR 50 +, 10 CFR 50.73#a2iB +  and 10 CFR 50.73#a2vB +

05000346  +  and 00346  +

FirstEnergy +  and Bezilla M +

05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +, 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +  and 05000346/LER-1917-002, For Davis-Besse Nuclear Power Station, Unit 1, Regarding Auxiliary Feed Water Pump Turbine Bearing Damaged Due to Improperly Marked Lubricating Oil Sight Glass +

8.333333e-4 d (0.02 hours, 1.190476e-4 weeks, 2.7396e-5 months)  +, 6.944444e-5 d (0.00167 hours, 9.920635e-6 weeks, 2.283e-6 months)  +, 1.388889e-4 d (0.00333 hours, 1.984127e-5 weeks, 4.566e-6 months)  +, 0.0117 d (0.28 hours, 0.00167 weeks, 3.831635e-4 months)  +, 0.0121 d (0.29 hours, 0.00173 weeks, 3.97242e-4 months)  +, 0.013 d (0.313 hours, 0.00186 weeks, 4.28443e-4 months)  +, 0.0134 d (0.321 hours, 0.00191 weeks, 4.394775e-4 months)  +, 0.00625 d (0.15 hours, 8.928571e-4 weeks, 2.0547e-4 months)  +  and 2.662037e-4 d (0.00639 hours, 3.80291e-5 weeks, 8.7515e-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)(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) +, 10 CFR 50.73(a)(2)(viii)(A) +  and 10 CFR 50.73(a)(2)(viii)(B) +

Washington +  and Ohio +

Steam Generator +, Feedwater +, Service water +, Main Steam Isolation Valve +, Auxiliary Feedwater +, Main Steam Safety Valve +, Decay Heat Removal +, Auxiliary Feed Water +  and Main Steam +

Office of Nuclear Reactor Regulation +  and Document Control Desk +

Time of Discovery +, Mission time +, Probabilistic Risk Assessment +  and Large early release frequency +

http://pbadupws.nrc.gov/docs/ML1733/ML17333A122.pdf  +  and https://lersearch.inl.gov/Index.aspx?Page=PDFView?Doc::3461917002R00.pdf  +