ML19225C947

RO 79-089/01T:discovered Possiblity of Failure of Process Cards,Causing Adverse Effects on Associated Loop Actions. Process Card Failure Analysis Performed

ML19225C947
Person / Time
Site:	North Anna
Issue date:	07/23/1979
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 7908030345
Download: ML19225C947 (1)

Text

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,.6lH C .. d o * .s s & 5 M Written Follcu-up

=-i al g d a

-n m*aaa.wap<w-g--,- ; a .___*dj Evenb: Rdluce !cG Pcccess Ccteds du.e b s h o r ti n eg

=$cG Cecqponents to grou.rd{LER RO 79-ON/O rr-O PDDR SRam 2-!_.\/ePco ic,lscos.lerec3 thett it is Poss

~.[ 9er their pc4 cess cards , Egpes N MD, bW P ctnd h.

,$ tc 9a31 causig adverse nGGects on the acecciai x; g loop ach. ns , io a-m , a 2 _, t5 The ccasc os-thh d,e, c recancu.

is the s.5 (\E cc.mponent-

!cu_pu.t c9 the cardw'P-cause.es t$ kuyu.t it is pcssb\e Sor ccmpenents -tg s\ tort

'~=,>.= a rc u.n o Bu 790803039'5 g_is\/epco ~has perGerrned ct Pcccess _jCa_rd Fab.re Ancdgsis sor- each card in qm.esti ctncd ds+he e66ect cG ca.rd Gat {u.ce$In this D=exammed h,!_\ cops is c.lcse= protech.

.=ton#p-s a i$E'.O There h no eS9ect on the ur't 9er continut a ,lioperoMens as a. resu H c9 this discrepcunca-

=m enses the Scitu.re.'s in t h e.y because in mest 3 conservativ e direction with the exception c9 u~ g SeedtecAer GE, The Steam /Feedwater F100 in Wsma.tcK in coincidence with a Steam Ge m m1 AE i sT i.i.1..)J.m h Ir im 4 E3 i @ @ )

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