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05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced
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Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
Accession number
ML20066F574  +
CFR
10 CFR 50.73#a2 +
Cross cutting aspect
P.0(e) +
Docket
05000499  +  and 00499  +
From
Ayala C +  and Creating Houston Lighting and Power Company +
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>.
05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +, 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +  and 05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +
Hours
3.472222e-4 d (0.00833 hours, 4.960317e-5 weeks, 1.1415e-5 months)  +  and 5.208333e-4 d (0.0125 hours, 7.440476e-5 weeks, 1.71225e-5 months)  +
In package
ML20066F564 +
Issue date
January 17, 1991  +
LER number
8  +
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>.
16:29:50, 26 May 2025  +
Page count
3  +
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.
05000499/LER-1990-008, :on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +
Project stage
Request  +
Reporting criterion
10 CFR 50.73(a)(2)(1) +
Site
South Texas +
Start date
January 17, 1991  +
State
Texas +
System
Steam Generator +  and Reactor Coolant System +
TS
TS-3.4.6.2 +
Title
:on 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced   +
Title:
On 900508,determined That Small Pressure Boundary Leak Existed on ASME Class 2 Steam Generator C Lower Head Drain Line.Caused by High Cycle Failure Fatigue on Weld on Upstream Side.Drain Valves Replaced +
Topic
Pressure boundary leak +  and Pressure Boundary Leakage +
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::4991990008R00.pdf  +  and http://pbadupws.nrc.gov/docs/ML2006/ML20066F574.pdf  +
 
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