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05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc
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Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
Accession number
ML20066H669  +
CFR
10 CFR 50.73#a2 +
Docket
05000259  +  and 00259  +
From
Tennessee Valley Authority +, Austin S +  and Bynum J +
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +, 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +  and 05000259/LER-1990-019, :on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +
Hours
0.0144 d (0.346 hours, 0.00206 weeks, 4.737225e-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)  +
Issue date
February 14, 1991  +
LER number
19  +
LER year
1,990  +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
16:54:51, 16 December 2024  +
NRC form
NRC Form 366A +, NRC Form 366, Licensee Event Report +  and NRC Form 3b6 +
Page count
5  +
Reporting criterion
10 CFR 50.73(a)(2)(iv), System Actuation +, 10 CFR 50.73(a)(2)(i) +, 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition +  and 10 CFR 50.73(a)(2)(1) +
Site
Browns Ferry +
Start date
February 14, 1991  +
State
Tennessee +, Georgia +, Maryland +  and Washington +
Title
:on 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc   +
Title:
On 901229,hourly Fire Watch Not Established When Instrument & Control Bus 1A Tripped Resulting in Loss of Power to Fire Detection Panels.Caused by Inadequate Procedure.Bus Returned to Svc +
To
Office of Information Resources Management +
Topic
Safe Shutdown +, Fire Watch +  and Hourly Fire Watch +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.
https://lersearch.inl.gov/Index.aspx?Page=PDFView?Doc::2591990019R00.pdf  +  and http://pbadupws.nrc.gov/docs/ML2006/ML20066H669.pdf  +
 
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