ML20028D116

LER 82-053/03L-0:on 821206,during Mode 1,spurious High & Low Meter Indications Observed on Main Control Board Indicator FI-494 for Steam Generator C Flow.Caused by Failure of Circuit Board FY-494.Board Replaced

ML20028D116
Person / Time
Site:	Summer
Issue date:	01/05/1983
From:	Mckinney C SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028D111	List: ML20028D110 ML20028D116
References
LER-82-053-03L, LER-82-53-3L, NUDOCS 8301170104
Download: ML20028D116 (1)

Text

u u --

e p r

. NWCFOAM5.. U.S. NUCLEAR ft26uLATORY COMMISSION APPWOVED BY OM3 LICENSEE EVENT REPORT E' /ijn'4 3...

CONTROL BLOCK: l l l l l l lQ (PLEASE PRINT oR TYPE ALL REQUIRED INFORMATloN) 101:..I l slCL.CIEN.E v i ECCODEl Si il@lo l o I -l 01010 l o I o l- I o l 01@l 41L.C110

.. 3. LIC EN.E NU M B E R .. ..

lo I 01@l E N.IE TT PE 3. 5, l

C.T ..

l@

CON'T l o ll l "o03 [Lj@l ol 5 l 0 l o l 013 l9 l 5 l@l 1l 2 lo l 6 l 8 l 2l@lo I 11015 l 8 l3 l@

y . .. ., DOCMET NUMB ER .. .. EVENTD.TE .. ,. R EPORT D.YE ..

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h I o 12 l l On December 6._ 1982_ with the Plant in Mode 1. spurious high and low meter

. I l o 13 l [ indications were observed on the Main Control Board Indicator (FI-494) for l l o j 4 l l Steam Generator "C" Steam Flow. There were no adverse consequences as the g lolsll minimum number of channels per loop identified in Technical Specification l

[olsll Tables 3.3-1 and 3.3-3 remained operable during repair of the tripped channel. [

lo17ll l loisil I

, t ..

'=" *. %'t . *=, ..M,oN E NT oo.E .o

.":a .="E lolol I il A l @ L,,sj @ L,, cJ @ li l N I s i Tl a l u l @ L..eJ @ l zl@

-E,ENT ,E..  :::":T"' ':.', ccn":~" "n?"' " " u.' ~

@ E6."l I al9 I _ . , ..

l-l IoI sI ,1 I/I I of 3 I LLJ l-l l,oj ,

= :~ = :: ::=T ==~ N....

@  :':=@' ,:::u..  :: = = E.@

{ CJ@lr. J8 L2J@ L.zj@

33 3 35 3 I3, oIo I oI oI L.y_J

, L..nJ@  ::.=

3

-L.lij@l wl iI2IoI .,

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h

[M ! The event is attributed to the failure of Circuit Board FY-494 The channel l l1l1ll was placed in the tripped condition within one (1) hour. The defective circuit l lil2ll board was replaced upon identification of failure, and the channel was returned l ltl3ll to operable status on December 7, 1982. upon completion of a satisfactory l

Iil4ll surveillance test. No further action is planned by the Licensee. l

,= . ..... .TN.....T.. ......... .......Y..

! l t l s l l B l @ l 0 l 3 l o l@l N/A @ l=l=@l Al Operator Observation l l

, .. .. .. i. . .

.EJEI'lo l : E"El.E . mount or acuv,77 ooc .7,oM or . EtE ..E

@l N/A l N/A l l

, l 11 a I L.2J @ L.zJ@l NUMBER TYPE D E . C R IPT IO N 111711 o l ol ol@L,,zj@l N/A I NUMBER E .C R IPT IO N 1 i18l l 0101 ol@l' N/A l

• m.'.TE . o , o.=E.c . .' '.i. nan

. E ,'o . . c u T .@

8301170104 830105 r PDR ADOCK 05000395 l 1l 9..l l Z l@l.. N/A S PDR l i..uBo"*'o'E.[nieTBoM h NRC USE ONLY

! I 2 I o I L. HJ@l N/A l lllllllllllll 7

N AME OF PHEPARER PHONE: (803) 345-5209

- V. J. >(cKinnev e/

i s- - - - - - - -w---,r-w -- w- -,w - , _ , - _

. ,%, - - - _ - ,