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05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised
Show incoming properties 
Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
Accession number
ML20086K197  +
CFR
10 CFR 50.72 +
Docket
05000373  +
From
Exelon +, Vinyard H +  and Diederich G +
Generic letter
NRC Generic Letter 87-09, Sections 3.0 and 4.0 of Standard Tech Specs on Limiting Conditions for Operation and Surveillance Requirements +
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>.
05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +, 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +  and 05000373/LER-1991-015-03, :on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +
Hours
0.0174 d (0.417 hours, 0.00248 weeks, 5.7075e-4 months)  +, 2.777778e-4 d (0.00667 hours, 3.968254e-5 weeks, 9.132e-6 months)  +, 0.0104 d (0.25 hours, 0.00149 weeks, 3.4245e-4 months)  +, 0.0119 d (0.286 hours, 0.0017 weeks, 3.91915e-4 months)  +  and 2.083333e-4 d (0.005 hours, 2.97619e-5 weeks, 6.849e-6 months)  +
Issue date
December 6, 1991  +
LER number
15  +
LER year
1,991  +
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>.
06:57:56, 14 December 2024  +
Page count
5  +
Project stage
Request  +
Reporting criterion
10 CFR 50.73(a)(2)(v), Loss of Safety Function +, 10 CFR 50.73(a)(2)(iv), System Actuation +, 10 CFR 50.73(a)(2)(i) +  and 10 CFR 50.73(a)(2)(viii)(A) +
Site
LaSalle +
Start date
December 6, 1991  +
State
Washington +
TS
TS-4.8.1.1 +  and TS-3.0.5 +
Title
:on 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised   +
Title:
On 911107,determined That Certain ESF Bus Under Voltage Relay Contacts Were Not Functionally Tested. Caused by Inadequate Testing Procedures.Undervoltage Trip Paths Tested & Test Procedures Will Be Revised +
To
Office of Nuclear Reactor Regulation +
Topic
Safe Shutdown +  and Missed surveillance +
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::3731991015R03.pdf  +  and http://pbadupws.nrc.gov/docs/ML2008/ML20086K197.pdf  +
 
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