05000334/LER-1980-080-03, /03L-0:on 801029,channel B Refueling Water Storage Tank Level Indicator Found Reading High.Channel Declared Inoperable.Caused by Indicator Drifting Out of Calibr. Indicator Repaired

From kanterella
(Redirected from ML19351E572)
Jump to navigation Jump to search
/03L-0:on 801029,channel B Refueling Water Storage Tank Level Indicator Found Reading High.Channel Declared Inoperable.Caused by Indicator Drifting Out of Calibr. Indicator Repaired
ML19351E572
Person / Time
Site: Beaver Valley
Issue date: 11/25/1980
From: Lacey W
DUQUESNE LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19351E571 List:
References
LER-80-080-03L, LER-80-80-3L, NUDOCS 8012100463
Download: ML19351E572 (2)


LER-1980-080, /03L-0:on 801029,channel B Refueling Water Storage Tank Level Indicator Found Reading High.Channel Declared Inoperable.Caused by Indicator Drifting Out of Calibr. Indicator Repaired
Event date:
Report date:
3341980080R03 - NRC Website

text

____

\\

e U. S. NUCLEAR R EGULATCRY COW.1ISSION NRC FO'.M 366 (7 779 LICENSEE EVENT REPORT (PLEASE PRINT CR TYPE ALL RECulREO INFORMATION) 00NTROL BLOCK: l l

l l

l l

1 6

lo t il I P l a i s IV i s Iljgl o 10 l-10 lo lo lo lo l-Io lo lgl6 l1l111ItIgj l

lg 7

8 9 uCENSEE CODE 18 f5 uCENSE % M8&M 2$

25 uCEN5E ivrE JO

$7 CA r $4

  • i*g, gp]1O I 5 l o I o [o l 3 I 3 l 4 @l1 10 1 2 I ol 8 l 0 )@l 1 l 1 12 I 5 l CON'T loIil M

69 EVENT DATE T4 75 4E70RT OATE 80 60 6

OOCKET tzyuaEM 7

8 EVENT DESCRIPTTON AND PRCB A3LE CCf dSEQUENCES h l o 121 1 On OctobE r 29. 1980 whi'm eerformine a ck,--a1 c k.- t.

channot 9 - a f,, a l <.,,. water I

lo t al l storage t ank level indicator was found rear' _no biek in

<7,e-of TechnicM i

t o #4) l Specification (T.S.) 3.3.2.1.

The channel was declarad in--r-,k1g and clant I

Aute-n**~

l

ois!I noaration continuad

<n bor c e,- >K - cer rke 'M - w*<-

er,*

Switch 0Ver CO CCa t a int:ent for the recirculation mode of safety in 4-e<nn.ekf-b l

lo 46 ] l foirfl recuires a 2/4 loeic could still be accomolished with the three rn-,<nine k e-nic I l

me rkin et,n*

I o is i I No previous events of this nature have occurred SO 7

8 9 COMP.

V A LV E system

CAUSE

C.1LS E CCCE CCCE SLsCCCE COMPCNENT CCDE SL8CCDE SUSCODE l o 13]

J S lF j@ ]E lh l E l@ lT IN I S I T 13 I ti lh Wh (Z lh 7

8 9

D 11 12

'3 18 19 20 5EQUENT1 AL UCCURRENCE aE*CMT AEvistCN GVENTYEAR REPORT NO, COOE TYPE NO.

@y4 E 80"Tt l3!0]

l-l 1 0i 8l 01 M

10 l 3 l U

(-j LE Ri AO

_ 21

2 23 24 16 27
3 29 30 21 32 E

ACTICH FUTURE EF8ECT 1*UTLOWN ATTACHMENT NP a c-4

  • RIME COMP.

CCM PCN E NT TAKEN ACTION ON#LANr VETHOO wCUR5 4.

SLeutTT ED FCRM aus.

$UP*U ER M ANUF AC'tRER I r !@L2J@

LzJ@

l zl@

l o f 010 10 1 Ly_J@

LuJ@

I^l@

1 :1112 i nI@

JJ Je 25 36 3J AG al 42 43 A4 47 CAUSE CESCalt'TICN AND CORRECTIVE ACTICNS h l3,oll The cause of the oroblem was that *he che-a1 9 i-M c ey k, ci drifted n e nf I

calibration. The indicator was repaired bv the maintat p a da-,-*-nee and *ka 1

,, j,,l

1. 1980.

vn % *,, r a

,-*4nn i

l ' # 21 L T3annel was olaced back in service en N-a-k,-

l

'l i i 31 I planned.

I It tai I a0 7

8 9 STAI.

s PCwf R CTWER ST &TUS D'

ER D'SCOVEAv 0ESCRtPTIQN I

li t s l Lcj@ l o l o i n l@l N/A I

I l@l o>eratnr m %...,es-,

go 44 al se y

a p 10 12 11 ACT1v e TY CON tit LOC ATION 05 *ELI ASE

  • aELEasto Or aELE ASE AMOUNT OF ACTIVITY d

IiI61111 @ l zl@l N/A l

l N/A l

ao 44 45 7

a 9 0

11

'!a5CNNEL EXPCSLRES w vaER TV'E OESCMiPTICN -

1 li I 71 1 o I o I o l@l 2 l@l N/A

,ERse~NE L i~m'A Es NUUSER OEsCaiPTION I

li t a l l o f o I o l@l N/A 30 7

8 9 11 12 L OCS OF OR C AM AGE TO F ACILITY I

TYPE OESCAIPTION l'lajI

!@l N/A 50 7

4 9 10 fgh}hlh 1 2 1 o1 dsyE @ l N/A

]

l l l l l l l 1 l ! l l ] ;;

T E CairTtCN 58 69 80- 3 7

8 9 to 112-643-8525 S' I'C*7 i' C E-JEPAREa l

9 ave OF P i

he

.-.o Attachment To LER 80-080/03L Beaver Valley Power Station Duquesne Light Company Docket No. 50-334 No '

.s.er information is available or needed to satisfy the reporting requirement i

6 1

e

., e