ML20084U860

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Telecopy Ao:On 750106,outboard Steam Isolation Valve 1-1301-16 on RCIC Sys Failed to Fully Close.Caused by Circuit Failure in Armature of Motor Operator
ML20084U860
Person / Time
Site: Quad Cities 
Issue date: 01/06/1975
From: Kalivianakis N
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084U851 List:
References
NJK-75-16, NUDOCS 8306290330
Download: ML20084U860 (2)


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/[ PostOcceBox218-Conhna,l#cois 61242 Te6ephone 309/854-2242 '

C3K.' 7S*16; Tolecopy;- Region III, AttentIont MN. C. Fe ierabend r January.-6, 1975 Je K' ppler, Regional Director.-

e Ol re cto ra te r of Regu l a tory; O pe ra t i ons Region; lit U6. S. Atomice. Energy Cossalaslon.

799 Roosevelt Kond Glen.Ellyn., ltlinals. 60337a DCferenoet e qued-Citles Maclear, Pomeere. Station..#hlt li Bockst: N64. 50-2541..DmR-29;..AprendIA AL Sectton l.0;A.2% 3;5 E.2;.6;6stil' e..

Bear.Mr.,Keppler:-

The purpose ofGthlti Tetter.. It-torprow!de you withinot4fIchtten.ofv'en.Abhonnel' Cecurrence. as requ i red ibyc Tecten f ee l : Speci fication 6'.6 st s I ".e,w i thin.24^ hoors : ofJ t4 ids : occurrencev..

WIthiUMEt One opereting.at=822:#We' on,J&nuary 6Lwkl1e doing. monthly,rweIGe.

operablilty.-serveillance on: the: RCSCA$ystess., outboard: steam

  • Isointlen.wstweMle-13Dla' 17)would;netsfelsy close,. Isabesordeisoletton valveJte# t=13OI-16<wes placed71ns the citosed* position...andithe DII!CI:Systee was-successfutfyrtested Is,accentence wIth>Techelz' el SpecifIdatlont3.5.E;2;.. A.circult-failurecibthe.ormature:of the-anator, operator. on:.ve19e 13Olul7/, appears <to be the cause.of; t4th.probltse..

This oocurrence wes discussed'byttelephens with".Mr.FalerabendteFyoureoffice' ontJenwory:6i.1975..Further: InforenetIbn will be: prow 3ded*by Abnoranel' Occurrence-Capor.c A0$504254/JS+2 ~which,will. be: sutettted:within. IO* days. of~ tema dete.ofc thisc occurrences..

V' ry,"trutp yours s...

CosteggWEAl,TM?E898000 COMRANY-RIAAD4 tTIE5'.

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