05000334/LER-1981-058-03, /03L-0:on 810610,refueling Water Storage Tank Level Indicator LI-QS-100A Failed Low.Caused by Failure of Force Motor within Low Loop Level Transmitter.Transmitter Repaired & Replaced on 810624

/03L-0:on 810610,refueling Water Storage Tank Level Indicator LI-QS-100A Failed Low.Caused by Failure of Force Motor within Low Loop Level Transmitter.Transmitter Repaired & Replaced on 810624

ML20009D799
Person / Time
Site:	Beaver Valley
Issue date:	07/10/1981
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20009D797	List: 05000334/LER-1981-058, Forwards LER 81-058/03L-0 05000334/LER-1981-058-03, /03L-0:on 810610,refueling Water Storage Tank Level Indicator LI-QS-100A Failed Low.Caused by Failure of Force Motor within Low Loop Level Transmitter.Transmitter Repaired & Replaced on 810624
References
LER-81-058-03L, LER-81-58-3L, NUDOCS 8107240359
Download: ML20009D799 (2)

LER-1981-058, /03L-0:on 810610,refueling Water Storage Tank Level Indicator LI-QS-100A Failed Low.Caused by Failure of Force Motor within Low Loop Level Transmitter.Transmitter Repaired & Replaced on 810624

Event date:
Report date:
3341981058R03 - NRC Website

text

-

(7 77)

LICENSEE EVENT REPORT b

,s CON THOt bLOCr.: l l

l l

l l

]@

(PLEASE PRIN T oR TYPE ALL REOOlHED INFORMATION) 1 6

l011] l P l A l 15 lV l S l 1 l@l 0 l0 l-l 0 l0 l0 l 0 j o l-l0 l0 l@l4 l1 l1 l1 l1 l@l l

l simw@

7 a 2 uco..EE COct i4

s uCecc ouvu s n

26 u:eNa Tm u CO*TT 3"J"J I L l@Lo l 3 t o I o 10131314 l@l o i 61 i l o f 81 il@l ol 71 il OI al,1@

lotil EVENT DESCniPTION Af,0 PROBA LE C ENCES l o 12 l l At 3755 hours0.0435 days <br />1.043 hours <br />0.00621 weeks <br />0.00143 months <br /> on 6/10/81 with reactor power at 9 E _Befueline Uator Storape Tank I

(iWST) Icvel indicator, [L1-QS-100A}, f ailed low then returned to normal several

[

~

, o ; 3, ;

j o g.i i l minutes later. Af ter declaring the channel inoperatsle, power operation continued l

go is; l - lii accordance with Technical Specification 3.3.2.1.

Public ? calth and safety were l 10161'l not jeopardized since suf ficient redundant channels were availa.le for auto safety l lc l7) [

injection transfer which initiates on low icvel in the RI?ST.

]

l 10131 I 60 S Y ST E '.1

CAUSE

cAUSE Corde.

VALs c COCE CODE SU COGE COMPGNENT CODE SUSCODE SUSCODE loisl I s t v l@ lij@ l e l@ l Ti mi si TI ul vlO IT I@ Iz i@

7 8

9 10 Ii 12 13 18 19 20 SEQUENTIAL OCCURRENCC REFOHT REVISION LE R EVENT YEA R REPORT NO.

CCDE TYPE N O.

@ gg'R0 I 81 kl

[-j lo is 18 i y

10131 It I l---J LoJ

_ 21 22 23 24 26 27 28 73 3G 31 32 T

AC QN ON PL NT MET HOURS S B IT FORPt L B.

SUPPLI MAN AC RER LcJ@L1J@

I zi@

L1J@

l o lo l o l oJ l.r_J@

LNj@

lAl@

l F J 1 l 2 l o l@

33 34 3a 36 31 80 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h [1Joj l The cht.nnel was returned to service on 6/12/81 when initial inv'ostiention conid I nn

- li li) i not determine a cause for-the intermittent level f edication. Continued I

gil2 l investigation traced the failure to the force motor within the loop level 1

- l: 131 l transmitter and on 6/24/81 the transmitter was removed for repair and replaced.

l I

't i l I I 7

3 9 l

!STA S

% POWE9 OTHER STATUS IS O RY DISCOVERY DESCRIPTION li 6 51_lE l@ l ol 919l@l N/A l

lAl@l Operator Observation l

8

'8 Co$ TENT AVCUNT OF ACTivlTY @ l ACTivirY LOCATION OF HELE ASE aELE ASED CF RELE ASE N/A l

N/A l

l 16 ] l 2 l @ [zj@l PERsONEY ExrosdAES eESCm,1,0N @

wveEn Tv,E li l 21 l o l o l o l@l z l@l

uA l

L'

,EnSONsELNm'2ES EsCRinON@

x li l-11010 I oj@l N/A l

NL.vu R 80 7

3 9 18 12 LCSS Of OR DAMAGE TO FActLeTY Q TvPE DESCRt* TION v

[zj@l N/A l

r 3

~

7

'O 8107240359 810710 NnC LISE QLY imEf@OEsCnianoN @

PDR ADOCK 05000334 S

PDR j

llllllllll;llj

-[.jl]

l N/A 2 1 c4 e so. ;

i s 9

' :o

~

II. S. laceV PHONE:

N AVE OF PREP AREH _

(

r

-+-,-

= _.

,.b Attachment to LER 81--58/031.

l Ilea er Valley Power Station Duquesne 1ight Company Docket l'o. 50-334 No further information is available or needed to satisfy the reportitig requircra tnt.

t i

b b

9 5

1