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05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04
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Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
Accession number
ML20083K844  +
Control rod
Control rod 34-31 +
Docket
05000341  +  and 00341  +
From
Pendergast J +  and DTE Energy +
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>.
05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +, 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +  and 05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +
Hours
0.0174 d (0.417 hours, 0.00248 weeks, 5.711305e-4 months)  +, 0.0178 d (0.426 hours, 0.00254 weeks, 5.83687e-4 months)  +, 0.0192 d (0.461 hours, 0.00274 weeks, 6.312495e-4 months)  +, 0.0176 d (0.422 hours, 0.00251 weeks, 5.7836e-4 months)  +, 0.019 d (0.455 hours, 0.00271 weeks, 6.23259e-4 months)  +, 0.0186 d (0.446 hours, 0.00265 weeks, 6.107025e-4 months)  +  and 0.0189 d (0.454 hours, 0.0027 weeks, 6.221175e-4 months)  +
In package
ML20083K842 +
Issue date
May 9, 1995  +
LER number
4  +
LER year
1,995  +
Manufacturer
General Electric +
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>.
08:49:02, 26 May 2025  +
NRC form
NRC Form 366, Licensee Event Report +  and NRC Form 366A +
Page count
8  +
Procedure
ES +  and CH +
Processing error"Processing error" is a predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> and represents errors that appeared in connection with improper value annotations or input processing.
05000341/LER-1995-004, :on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +
Project stage
Request  +
Reporting criterion
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)(iv), System Actuation +, 10 CFR 50.73(a)(2)(i) +, 10 CFR 50.73(a)(2)(x) +, 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition +, 10 CFR 50.73(a)(2) +, 10 CFR 50.73(a)(2)(viii)(A) +  and 10 CFR 50.73(a)(2)(viii)(B) +
SSC
07-92-012 +
Scram
Manual Scram +
Site
Fermi +
Start date
May 9, 1995  +
State
Washington +
System
Feedwater +, High Pressure Coolant Injection +, Reactor Core Isolation Cooling +, Main Turbine +, Reactor Recirculation Pump +, Standby Gas Treatment System +, Emergency Core Cooling System +  and Control Rod +
TS
05000293/TS-3.4.6.1 +
Title
:on 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04   +
Title:
On 950409,unexpected Reactor Water Level 2 & ESF Actuations Occurred After Planned Scram.Caused by Selection of Parameters Used in Post Scram FW Logic Mod Per Engineering Design Package 9207 Installed During RF04 +
Topic
Reactor Vessel Water Level +
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::3411995004R00.pdf  +  and http://pbadupws.nrc.gov/docs/ML2008/ML20083K844.pdf  +
Work request
WR 05000 +
 
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