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LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report

05000259  +  and 00259  +

Tennessee Valley Authority +, Austin S +  and Bynum J +

05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +, 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +  and 05000259/LER-1990-019-02, :on 901212,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped,Resulting in Loss of Power to Fire Detection Panels.Investigation Underway. Supplemental Rept Will Be Submitted by 910214 +

0.0144 d (0.346 hours, 0.00206 weeks, 4.737225e-4 months)  +, 0.011 d (0.264 hours, 0.00157 weeks, 3.61475e-4 months)  +, 0.012 d (0.289 hours, 0.00172 weeks, 3.9572e-4 months)  +, 0.0121 d (0.29 hours, 0.00173 weeks, 3.976225e-4 months)  +  and 0.0145 d (0.347 hours, 0.00207 weeks, 4.75625e-4 months)  +

10 CFR 50.73(a)(2)(v), Loss of Safety Function +, 10 CFR 50.73(a)(2)(iv), System Actuation +, 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition +, 10 CFR 50.73(a)(2)(viii) +, 10 CFR 50.73(a)(2) +, 10 CFR 50.73(a)(2)(viii)(A) +  and 10 CFR 50.73(a)(2)(1) +

Georgia +, Maryland +  and Washington +

https://lersearch.inl.gov/Index.aspx?Page=PDFView?Doc::2591990019R02.pdf  +  and http://pbadupws.nrc.gov/docs/ML2006/ML20066D571.pdf  +