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05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened
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Category
LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT  and Licensee Event Report
Accession number
ML20073G914  +
Atomic Element
Lead +
CFR
10 CFR 50.73#a2iv +  and 10 CFR 50.73#a2 +
Docket
05000373  +
From
Exelon +, Diederich G +  and Wiemholt T +
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-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +, 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +  and 05000373/LER-1991-004-05, :on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +
Hours
0.0164 d (0.393 hours, 0.00234 weeks, 5.38788e-4 months)  +
Issue date
April 30, 1991  +
LER number
4  +
LER year
1,991  +
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>.
08:48:16, 15 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)(vii), Common Cause Inoperability +, 10 CFR 50.73(a)(2)(iv), System Actuation +, 10 CFR 50.73(a)(2)(i) +, 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition +, 10 CFR 50.73(a)(2) +  and 10 CFR 50.73(a)(2)(viii)(B) +
SSC
1B33-F338B +, 1B33-F342B +, 1B33-F344B +, 1B-33-F340 +, 1B33-F3388 +  and 1B21H-K66X8 +
Site
LaSalle +
Start date
April 30, 1991  +
State
Illinois +
System
Primary Containment Isolation System +  and Shutdown Cooling +
Title
:on 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened   +
Title:
On 910401, B Reactor Recirculation (RR) Hydraulic Power Unit Inboard Isolation Valves 1B33-F338B, 1B-33-F340B,1B33-F342B & 1B33-F344B Closed Due to Blown Fuse.Fuse Replaced & Valves Reopened +
To
Office of Nuclear Reactor Regulation +
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::3731991004R05.pdf  +  and http://pbadupws.nrc.gov/docs/ML2007/ML20073G914.pdf  +
 
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