05000324/LER-1981-018-03, /03L-0:on 810210,primary Containment Atmospheric Monitor Hydrogen analyzer,2-CAC-AT-1263-1,model 7C,showed Varying Indications.Cause Unknown.Indication Was Found Steady Upon Investigation

/03L-0:on 810210,primary Containment Atmospheric Monitor Hydrogen analyzer,2-CAC-AT-1263-1,model 7C,showed Varying Indications.Cause Unknown.Indication Was Found Steady Upon Investigation

ML20003C890
Person / Time
Site:	Brunswick
Issue date:	03/09/1981
From:	Pastva M CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20003C888	List: 05000324/LER-1981-018, Forwards LER 81-018/03L-0 05000324/LER-1981-018-03, /03L-0:on 810210,primary Containment Atmospheric Monitor Hydrogen analyzer,2-CAC-AT-1263-1,model 7C,showed Varying Indications.Cause Unknown.Indication Was Found Steady Upon Investigation
References
LER-81-018-03L, LER-81-18-3L, NUDOCS 8103180643
Download: ML20003C890 (2)

LER-1981-018, /03L-0:on 810210,primary Containment Atmospheric Monitor Hydrogen analyzer,2-CAC-AT-1263-1,model 7C,showed Varying Indications.Cause Unknown.Indication Was Found Steady Upon Investigation

Event date:
Report date:
3241981018R03 - NRC Website

text

..,

LICENSEE EVENT REPORT cowTRot sLOCK:

l l

l l

l lh D LEASE P INT CR TYPE ALL REQUtRED INFCKMATIONI i

l Nl Cl B I E l Pl~ 2 l@l 0 l 0 l -l 0 l 0 l 0 l 0 l 0 l - l 0 l 0 I@l 4 l 1 l 1 l 1 l 1 l@l l

l@

f 8 6 UCENSEE CooE I4 15 UCENSE NUMSEM 26 26 uCENSE TYPE 40 67 CAT ba g l L)@l 0l 5 l 0 l -l 0 l 3 l 2 l 4Ml O l 2 l 1 l 01811 l@l 013 l 0 l 9 l.8 l 1 l@

ContT S

80 61 DOCKET NUMgER 68 69 EVENT DATE 14 M

REPORT DATE 80 EVENT DESCRIPTION AND PRO 8ABLE CONSEQUENCES h l

l During routine surveillance, primary containment atmospherde inonitor hydrocen o 2 indications I

l analyzer, 2-CAC-AT-1263-1, model no. 7C, was observed showing varying 2

The other 1

I although no change had occurred in actual hydrogen concentration.

o4 I

l primary containment atmospheric monitor hydrogen analyzer, 2-CAC-AT-1259-1, had o s I steady, expected hydrogen concentration indication at the time of this event.

This f

oa Q l event did not. affect the health or safety of the public.

l

@l Technical Specifications 3.6 6.4, 6.9.1.9b i

80 EusEo'E SuNEE To'E

1. $oie' SNC$of CouPoNEur Coot l 'Sl El@ W@ l Z l@ l Il Nl Sl Tl Rl Ulh Q@ l Zl@

o e 7

8 9

80 st 12 13 16 19 20 SEoUENTIAL OCCURRENCE REPORT REVtsloN LE R/RO EVENT YEAR REPORT NO.

CooE TYPE No.

h,Rg l21 8l1 l l-l l0 l1 l 8 l y

l0 l3 l l L]

9 l 0l 22 23 24 26 27 28 29 30 38 32 E

A P

T ME HOURS S8 i FOR 8.

PPLI MA UFA TURER Ql@lCl@

lZl@

lZl@

l0 l0 l0 l0 l W@

lY l@

(,N,_j @

l B ll l 3 l5 l@-

33 34 36 36 37 40 48 42 4J 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I Upon investigation the monitor hydronen' indication uns found _s teadv and at the I

1 o 1 expected value for the oneoing plant conditions.

A calibration check nf the I

i i l

- g 1 monitor fiydrogen analyzer did not reveal any cause for the previousiv observed The monitor hydf oren analyzer uns l

l @ l varying hydrogen concentration indigtiorn I

l therefore declared operable-and returned'to oreration.

l t 4 s

s9 DISGoVERY oESCRIPTION STA

% POWER OTHER STATUS I

NA l

W @l Operational Event l

d @ l0l7l2l@l l

5 80 44 4s 5

l eg gg

. i:

n f

RELEASEo 0F RELEASE AMOUNT of ACTIVITY LoCAT1oM oF 7tELEASE l

l NA l

l NA l Z l @ [ 2,,j @ M ES l

1 6 PER$oNNEt expos l0l0l0l@ TYPE @lotSemPTioN@

NuveER l

l Zl NA i 7

' ER$o Et,,uu',2,ES oESC,Tio~@

l No ER lOl0l0l@l NA t n 80 7

8 9

.11 12 LOSS OF CR DAMAGE TO FACILITY l

TYPE oESClitPTION d @l NA 1 9 i

30 l

3 8 9 to 28Q e,

DE CRIPTsome MA l

l l l l I l l l l l l l l 'd gSSUE L_Njhl 2 a 68 69 80 3 3

8 9 to 919-457-9521

{

NAME OF PdEPAREn M. J. Pastyn. Jr -

PHONE:

n

e

?

LER ATTACIDE!TT - RO NO. 2-81-18 s

Facility: BSEP Unit No. 2 Event Date: 2-10-81 e

All the operating parameters which affect this monitor were reviewed by Maintenance personnel. No abnor: sal trends or problems were detected which would have caused the indications exhibited by this monitor. Following this evaluation and a calibration check, the monitor was returned to service.

G f

e e

4 e

e e

O

+

e e,

m M

e e

Ne b

0

+

e

, g O

e 6

e b

o e

eD e'