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05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced
Show incoming properties 
Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
Accession number
ML20116D584  +
Docket
05000346  +
Equipment trip
Reactor Trip +
From
FirstEnergy +, Quennoz S +  and Marley 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>.
05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +, 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +  and 05000346/LER-1985-005, :on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +
Issue date
April 18, 1985  +
LER number
5  +
LER year
1,985  +
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>.
03:42:22, 13 December 2024  +
Page count
3  +
Reporting criterion
10 CFR 50.73(a)(2)(iv), System Actuation +
Site
Davis Besse +
Start date
April 18, 1985  +
System
Steam Generator +  and Feedwater +
Title
:on 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced   +
Title:
On 850321,erroneous Signal in Integrated Control Sys Led to Reactor Trip on Low once-through Steam Generator Level.Caused by Faulty Controller in Feedwater Level Control Circuit.Controller Replaced +
To
NRC OFFICE OF ADMINISTRATION (ADM) +
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::3461985005R00.pdf  +  and http://pbadupws.nrc.gov/docs/ML2011/ML20116D584.pdf  +
 
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