ML19345H403

LER 81-035/03L-0:on 810415,all Three Chlorine Detectors Failed to Meet Min Electrolyte Drip Rate Criteria Specified in Surveillance Test.Caused by Flow of Electrolyte Being Blocked.Wicks Replaced & Glass Orifices Cleaned

ML19345H403
Person / Time
Site:	Beaver Valley
Issue date:	05/14/1981
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345H401	List: ML19345H400 ML19345H403
References
LER-81-035-03L, LER-81-35-3L, NUDOCS 8105200243
Download: ML19345H403 (2)

Text

-

unC nu m am '

~

LICENSEE EVENT REPORT CONTRCI. 5 LOCK: l l 1 l  ! l (PLEA $1 P*lNT OR TYPE ALL GEQUIRED INFORMAftCN!

l lg foTil 7 8 9

[ F l A l uCENSEE C003 3 l V 14 l S 15 l 1 l@l 0 l 0 uCENSENuestRl- l 01010 l IS 010 .'8 l- l010 UCENSE Typt JG l@l4 l1 57 CAT 54 l1 l1 l1 l@l CCN'T lolil 7,3 l L @l 0 ] 5101010131314_I@l w w 0eventI 4orre f 1 I S I S:s l 1RucRT 14 @l o l S I so114131 11@

oars r a so si cocarTNLesam EVENT DESCalPTION AND P9CS ASLE CCNSECUENCES hat 56*. reactor power, all three c g g , l On 4/15/81 with the plant the minimum electrolvte drip rate criteria specified in their surveillance l

[ o t a l I to meet j

[otalI test. At 2233 hours0.0258 days <br />0.62 hours <br />0.00369 weeks <br />8.496565e-4 months <br /> all three detectors were declared inocerable and the Control

. I i

lo is J l Room ventilation system was olaced on full recirculation flow as per Technical lo !s l i Snecific, tion 3.3.3.7 This is the sixteenth reeerted evant involvinz the chlorine I l

is)7)I detectors.

I 53 lo ta l l cop p. VALv g 7 8 9 CAUSE SYSTEM CAUSE C urcutNte::e sueco:t suse:cs Coce C:ce sLecces I_o l s i 4

lS lG l@ W@ lB l@ lI lN lS IT lR IU l@idREPcAr 9 10 11 12 1J 14 l El@ l Zi@REv'53CN 20 F

SE JUENTf AL ?COU A n tNCE

,,,,. C00E TYPE No.

R EPCRT NO.

gg q po EvtNT YE AR p_j l0 l3 l 10l O ,aE u g I 3 l 122l [--j 23

[0!3l5l 28 ;6 27 3 ;S l 1. l 00 l-l Ji 32 621 MANL AC .stR A CN P T w [ McVRS 22 59 i 8CA 8. SLP L!E EN LAj@ltil@ lasZ i@ la Zl@ 101010 Yi ao J W@ I42N I@ IAl@ l W l o l 215l@

as 44 4,

.2 24 u 4:

CAcSE CESCAPr1CN AND COAAECTIVE AC'!CNS h l li lo j 1 The chlorine detectors were restored to service on 4/16/S1 by replacing the wicks ~

Future l li6ii 1 and cleanine the class orifices which had blocked the flow of electrolvte.

]

I, # 21 ] corrective actions include substitutine distilled for demineralized water in the f j li l 3 t l electro 1vte solution, as recommended by the vendor, and additional trainine o

, I It 64tI cersonnel on procer reservoir filline crocedures. so 7 ss m CISOCVERY OESCR:#TICN

• % POvetR CTWER $ fA ft.$

STAT l N/A l l B l@l Ferforming surveillance test "

l. i $ 5 l l Fl@ l 0 l 5 l 6l@l " " " " "

l

' ' 4&iviry dar Nr t=TicNc,.ariss@

uture :,.neu .uccNre, N/A acnvery @ I I N/A 33 I

[ Iiisl IZ 7 4 3 l @ L ZJ to

@l 11 44 46 PERSCNNEL EXPoSumES l

' " " " " ~" l N/A ITT71 10 l 01 O l@l E!@l "

etRsCNN E iNac'aits m va:R cascRietiCN@ l N/A

Ii I a.,i 101010 l@ln ,,

LOSS C8 CR cauaCE TO Factury Q l *v't O ESCRIPTICN v l N/A gg

[ li 1918 9I Z l@lIQ 7 N AC USE CNLY ,

issut CE ORtPTION l l1llIlltjtltl}

N/A LGB 7 8 9 UUh 10 ,

68 69 ,30. ;

• 3* b#C"Y PHCNE:

I N AME CF PREP AAER 810520ogys.

. - - ~

+

. .i i - Attachment To LER 81-35/03L Beaver Valley Power Station Duquesne Light Company Docket No. 50-334 No further information is available or needed to satisfy the reporting requirement.

. .

{.

3 4

4

+ L l

4 i

I

,  ;

i 1

4 3

I i

}

1 l

l i.

l l

l I

• t i - . - . . ~ s. _ . ___ . . _. .. . .

me- .amm,,,,e,.,,,,