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05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired
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Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
ASME section
ASME Section III +
Accession number
ML20246J952  +
CFR
10 CFR 50.73 +  and 10 CFR 50.73#a2vii +
Docket
05000293  +  and 00293  +
From
Bird R +, Eversource Energy +  and Basilesco G +
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>.
05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +, 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +  and 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +
Hours
0.00133 d (0.0319 hours, 1.901455e-4 weeks, 4.37575e-5 months)  +, 0.0059 d (0.142 hours, 8.43254e-4 weeks, 1.94055e-4 months)  +  and 0.00984 d (0.236 hours, 0.00141 weeks, 3.23425e-4 months)  +
Issue date
July 3, 1989  +
LER number
17  +
LER year
1,988  +
Manufacturer
Limitorque +
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>.
22:21:25, 26 June 2025  +
Page count
8  +
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.
05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +
Project stage
Other  +
Reporting criterion
10 CFR 50.73(a)(2)(vii), Common Cause Inoperability +
Site
Pilgrim +
Site license
Pilgrim +
Start date
July 3, 1989  +
State
Massachusetts +  and Washington +
System
High Pressure Coolant Injection +, Primary containment +, Shutdown Cooling +, Core Spray +, Residual Heat Removal +, Reactor Water Cleanup +, Core Standby Cooling System +, Control Rod +, Containment Spray +  and Low Pressure Coolant Injection +
Title
:on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired   +
Title:
On 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired +
To
Office of Information Resources Management +
Topic
Time of Discovery +  and Nondestructive Examination +
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::2931988017R00.pdf  +  and http://pbadupws.nrc.gov/docs/ML2024/ML20246J952.pdf  +
 
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