05000334/LER-1981-074-03, /03L-0:on 810803,ESF Instrumentation PS-MS-475A Alarmed & Reset Numerous Times & Was Declared Inoperable. Caused by Circuit Board Capacitor Failure Damaging Adjacent Circuit Board.Both Boards Replaced

/03L-0:on 810803,ESF Instrumentation PS-MS-475A Alarmed & Reset Numerous Times & Was Declared Inoperable. Caused by Circuit Board Capacitor Failure Damaging Adjacent Circuit Board.Both Boards Replaced

ML20010F838
Person / Time
Site:	Beaver Valley
Issue date:	08/27/1981
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010F837	List: 05000334/LER-1981-074, Forwards LER 81-074/03L-0 05000334/LER-1981-074-03, /03L-0:on 810803,ESF Instrumentation PS-MS-475A Alarmed & Reset Numerous Times & Was Declared Inoperable. Caused by Circuit Board Capacitor Failure Damaging Adjacent Circuit Board.Both Boards Replaced
References
LER-81-074-03L, LER-81-74-3L, NUDOCS 8109110402
Download: ML20010F838 (2)

LER-1981-074, /03L-0:on 810803,ESF Instrumentation PS-MS-475A Alarmed & Reset Numerous Times & Was Declared Inoperable. Caused by Circuit Board Capacitor Failure Damaging Adjacent Circuit Board.Both Boards Replaced

Event date:
Report date:
3341981074R03 - NRC Website

text

aCemesennemnr

.. e CONVQOL DLOCC l l

l l

l I Ih (PLEASE PRIMT OR TVPE ALL REQUIRED INFORMATION) i 6

10 l i l LP j A l B l V l S l 1 l@l 0 l0 l-10 l0 l 0 l 0 l0 l-l010. l@l4 l1 11 11 l1 l@l l

l@.

i s

')

LICENSEE CQOE 14 iS LICENSE NuvtsEH

.' b 26 LICENSE TYPE JD Si CAT 13 CO*4'T 10121 5M ltl@lol 5101010131314 l@l 0 l a 10131 a l 1 l@l 01812171 a l i l@

7 8

60 68 DOCK ET NVV6ER 64 63 EVENT CATE 14 15 REPORT DATE 80 EVENT DESCRIPTIC'; AND PROB ABLE CONSEQUENCES h 101:1 l ESF Instru~entation PS-MS-475A (Bistable for toon A. ChanncL IT T Low Steam Line l

l 013 ; I Pressure) n1 armed aiJ reset numerous tires and was declared inoperable upon l

10 i A l l verification that steamline pressure was normal.

Plant was in Mode I at 1007 j

lats!I. power. There was no ef fect on the health.ind safety of the ceneral nublic l

10 is I l because the histable en : crinnea.

Annlicable Tech Specs 3.3.1.1 I

I lo!71I I

i 3 !a i i 80 8 9 SYSTEu

CAUSE

CALSE COMP.

VALVE COOE CODE SUSCODE COMPONENT CODE SUSCODE SUSCOOE 10191 I II Bl@ l El@ l El@ l Il Nl Sl Tl Rl Ujh l Yl@ l Z!h 8

9 TJ 11 12 13 18 19 2w SE OU E NTI A L OCCU A A E*.CE RE20RT R EVISION

_ EVENT <t.aR REPCRTNO.

COOE TYPE N O.

@,=ggp og 18!il 1-1 101714l I/l 10131 1 1. l l-l I 01 e",;,a; s

_ 21 22

3 24 26 27

'S 29 00 31 32 ACTION FUTLAE E88ECT SH UT OOW N ATTAChvENT NPRD-4 PR4tE COYP.

COMPONENT TAKEN ACTION ON PLANT

• 'ETHOO

• • CURS SUBVITTED FORM >LB.

SuPP LIE R

• fANUFACYORER lAl@l7.l@

lZl@

W@

l 0I Gi O! Ol l Yl@

l Nl@

l Nl@

lWl1l2l0l@

23 34 25 36 3d 40 41 42 43

.'a 47 CAUSE DESCRIPTION ANC CCARECTIVE ACTIONS jil3ll A circuit board capacitor failed damaging an adjacent circuit board.

Both j

1: 11l circuit boards were replaced.

I I 1:1 I l

l 131 I l

l 1:1 I 80 3 3 ST N PC.'.E R OTHER STATUS hlSCO RY DISCOVERY CESCRiPTION NA l

l A l@l Bistable Alarm l

I' l 5 l l E lh l 1 l 0 l 0 l@l 80

?

0 1:

11 44 45 46 a;TIVITY CON ENT BELE45E A\\tOUN f OF ACTIVtTY LOCATION OF RELEASE I le I L:_J @O OF RELE ASELL@l N/A I

I N/A i

i s 3 14 44 45 80 8EESONNE* E A8CS.aES NL*.*E E a

+vo!

O E SCRIPTIO N F i -l 101 o l o l@lij@l N/A I

60 i +

t3

1. E

• SON'.i t M A 'E 3

.,*.'9 E R OE50R # TION L_LjloIoIol@l N/A l

go

n cF :n 2v: aE va:wrv sE M 5;n.at.:.

l l i i 1 : 1@l N/A do 8109110402 810827 r,-- ]7 PDR ADOOK 05000334 M C USE 34tv 1' ; l -t l i. W I,;,,..s S

PDR

i ; i ; ; ; l ~3

':/ A g

9; l t wo

.. s v:

ca.,

W.

S. Lacev W -M M E'

{

...a m.m; m en

,,gyg l

3 c'

. s o o Attachment to LER 81-74/G3L Beaver Valley Power Station Duquesne Light Company Docket No. 50-334 No further information is available or needed to satisfy the reporting requirement.

4 4