05000327/LER-1981-022-03, /03L-0:on 810219,w/unit in Mode 5,chlorine Detector O-CLAN-43-205A Declared Inoperable.Caused by Electrolyte Used to Drip Onto Sensor Becoming Stopped Up in Felt Filter.Filter Replaced & Detector Returned to Svc

/03L-0:on 810219,w/unit in Mode 5,chlorine Detector O-CLAN-43-205A Declared Inoperable.Caused by Electrolyte Used to Drip Onto Sensor Becoming Stopped Up in Felt Filter.Filter Replaced & Detector Returned to Svc

ML19345G259
Person / Time
Site:	Sequoyah
Issue date:	03/13/1981
From:	Mcgriff J, Wilkey A TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19345G258	List: 05000327/LER-1981-022, Forwards LER 81-022/03L-0 05000327/LER-1981-022-03, /03L-0:on 810219,w/unit in Mode 5,chlorine Detector O-CLAN-43-205A Declared Inoperable.Caused by Electrolyte Used to Drip Onto Sensor Becoming Stopped Up in Felt Filter.Filter Replaced & Detector Returned to Svc
References
LER-81-022-03L, LER-81-22-3L, NUDOCS 8103170595
Download: ML19345G259 (1)

LER-1981-022, /03L-0:on 810219,w/unit in Mode 5,chlorine Detector O-CLAN-43-205A Declared Inoperable.Caused by Electrolyte Used to Drip Onto Sensor Becoming Stopped Up in Felt Filter.Filter Replaced & Detector Returned to Svc

Event date:
Report date:
3271981022R03 - NRC Website

text

-_

LICENSt:t tVt-N i HhPORT 1.C CSNTROL BLCCK: l

- l l

l l

l (PLEASE ' RINT OR TYPE ALL REQUIRED INFORMATIONI P

~

~

lo it l lT lN IS lN lP'If !@! O l O ! -l 0 l 0 l 0 l 0 l 0 l-l0 IO l@al 4 l 1 l 1 I 1 l 1 \\@[_ l

[@

a 9 ucsNsta ccos i*

15 uCENsE NuueER a

uCENsE TvPE 40 5, C.

,e

con T 101il sciNs [L @l015 10 10 l 0 l 3 ! 2 I 7 @l 0 ] 2 l1 l9 (8 l1 @] O l 3 l11318 11 l@

l 3

60 El DOCiCET NUMBEM 64 69 L 'ENT CATE 74

. 75 REPORT DAT E 30

- ' EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h jo#2l lWith unit in mode 5, chlorine detector 0-CLAN-43-205A was declared inoperable as a i

g l result of the daily channel ch'eck. The plant entered' action statement "a" of go4.l l LCO 3'.3.3.6.

There'was no effect on public health or safety. One previous occurrence:

o,3; lSQRO-50-327/80163. '

l0 l6 l l [0 l 7l I t

t l0{8l l 4;

=

7..

3 3 sYST EM

CAUsE

CAust

coup, susCoog vatvg CCCE CCCE*

suscoot Cou'ONENT CCCE suscocE lci9l lSlGl@

@, j E l@ [.I l N l S lT lR JU l@ l E lg 'l z l g 7

8 9

10 18 12 IJ 18 19 20 CCCUnRINCE' REPORT REVistON stout NTI AL gnfmo EV ENT YE A R R E PonT NO.

CCCE TYPE No,

@,a(g,g i s i'11 1-1 10 12 12 l [g_l l0 "l3 I It l

[--J 10 i

_v n

n 24 u

n n

n so

. 2, n

T A

Ot4 CNPLANT u

MOURS s Suaf f 3 FOn US.

suPPLIE '

MAN FACTURER W@l Gl@

l z l@

l_z J@

l0 l0l0l0l lN l@

lNl@

lLl@

l Wl 0 } 2 l 5 33 34 ab 34_

37 40 el 42 43 44 4-CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

~

~

l i j o l l The"electrdlyte used to drip onto the sensor for detecting chlorine had' b'ecome stopped

~

li# l l up in the felt filter. Tlie felt filter was repl' aced, the orifice class was cleaned, a

~

l-functional tdst performed, and the detector was returned to service. The acceptable

,,,7, l drip rate criteria will be made tighter to initiate maintenande before the detector i,,3, l becomes inoperabl'e'.

7 E i 8;

otsEnsTATus b S'sE$SN

's'r'N."

sPowta oiscovenY casCRiPTioN NA l

l B l@l ^ Daily channel check l 8 i S I [fzj@ l 0 l 0 10 l@l

~

u o

a as 4

at s g,,,,,. cg0,,,,

aEttAst ornELEast Auct'NT OF ACTIVITY LOCATION OF RELEAst NA I

I MA li101lzi Izl@l 7

a 9 10 si a

45 E<

PEnscNNEL ExPosvats NuueE R TYPE CtsCRtPTtON li l rl 10101 O l@l z l@l NA 83 7

8 9 at 17 13 PER$oNNgg Njun:Es L'de_1 101 010 l@l NuveER

DESCRIPTION

NA P

4 0 11 12 ec LCss CF OR O*uaCE TO FAU'LITY TV'E DE SCRIP TION LL19_1Izl@l I

NA

_. ec a s

>0 4,.

N RC USE ON L

• Putt gCITy

--=;,

IssVEO D ESCRsPTION i

I l l 1 t i l l i i f,.!-

Irlel l

m u

68' 49

.g i

8 9 10 Na=e of pre:are.A.M.Wilkey/J.M.McGriff Phone (615) 842-3317

_f' 810 317 O.S954 i