05000324/LER-1979-097-03, /03L-0:on 791217,during Normal Plant Operation, torus-to-drywell Vacuum Breaker CAC-X18E Had No Closed Indication.Caused by Valve Flapper Not Completely Closing. Replaced Permanent Magnet Holding Flapper Closed

/03L-0:on 791217,during Normal Plant Operation, torus-to-drywell Vacuum Breaker CAC-X18E Had No Closed Indication.Caused by Valve Flapper Not Completely Closing. Replaced Permanent Magnet Holding Flapper Closed

ML19262C009
Person / Time
Site:	Brunswick
Issue date:	01/15/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19262C007	List: 05000324/LER-1979-097, Forwards LER 79-097/03L-0 05000324/LER-1979-097-03, /03L-0:on 791217,during Normal Plant Operation, torus-to-drywell Vacuum Breaker CAC-X18E Had No Closed Indication.Caused by Valve Flapper Not Completely Closing. Replaced Permanent Magnet Holding Flapper Closed
References
LER-79-097-03L-01, LER-79-97-3L-1, NUDOCS 8001220419
Download: ML19262C009 (1)

LER-1979-097, /03L-0:on 791217,during Normal Plant Operation, torus-to-drywell Vacuum Breaker CAC-X18E Had No Closed Indication.Caused by Valve Flapper Not Completely Closing. Replaced Permanent Magnet Holding Flapper Closed

Event date:
Report date:
3241979097R03 - NRC Website

text

NRC PUMM Jbe (7 77)

LICENSEE EVENT REPORT CdNTROL BLOCK: l l

l l

l lh (P(EASE PRINT OR TYPE ALL REQUIRED INFORMATION) l 6

0l 0 010 l 0 l - l 0 l 0 l@l 4 l 1 l 1 l 1l 1l@l l

l@

oIi lN ClBlElPl2l@l'Ol0 7

8 9 LPCENSEE CODE 14 15 LICENSE NuM8EH 25 26 LICENSE TYPE J0

$1 CATSd CON'T

$y',$ l L@ Ol 5l Ol -l Ol 3l 214 @l 1121117171'9 @l 01 i l il s l 810 l@

o i

?

8 60 61 DOCKET NUMSER 6d' 69 EV E%T DATE 74

?S REPORT CATE 80 EVENT DESCRIPTION AND PRO 8ABLE CONSEQUENCES h o 2 l During normal plant operation, the control operator noticed that the torus to I

l l drywell vacuum breaker CAC-X18E had no closed indication.

o 3

I o

4 I

0 5

o 6

l o

7 i

Technical Specification 3.6.4.1, 6.9.1.9b I

I o

a l 80 SYSTE M

CAUSE

CAUSE COMP-SUSCOCE VALVE CODE CODE SUSCODE COMPCNENT CODE SUSCCOE I S l A lh l_E_]h l F lh I V l A l L I V l O l P lh IX h Wh o

9 7

8 9

10 11 12 13 18 19 20

. SEQUENTI AL OCCURRENCE REPORT R EVISICN LE A RO EVENT YE AR REPORT NO.

CGOE TYPE NO.

7 9l

[-j l0l9l7l l/l 0 13 I Lj l-l 0l hyafg l21 22 23 24 26 27 28 29 30 31 32 K N AC CN ON PL NT VET HOURS S8 IT FOR1 B.

SL PPLI E MAN FA Tt.,R E A I Cl@l zl@

lzl@

l z l@

101010101. W @

l Y l@

lAl@

G l 2 l 0 l 2 lg 34 35 36 3 s.

40 di 42 43 44 47 33 CAUSE CESCRIPTION AND CORRECTIVE ACTIONS @

i 0

an investication determined that the valve flapoer was not completelv closing.

The i

li 11 1I non-,nent -,cnet which holds the flaeoer closed was reolaced. the cosition indicatineI I switches were aligned and the valve left in satisfactorily condition. This is I

i

?

i a l ennsiderad an isolated event and no further action is recuired.

I I

wI 60 7

8 9 ST S

% POWER OTHER STATUS 015 RY DISCOVERY CESCRIPTION NA l d hl Operator Surveillance l

d h IOl0l6lhl i

S 8

CClTENT

• ACTiviTv AMOUNT OF ACTIVITY LOCATION OF RELEASE RELE ASE@D CF RELE ASEW@l u I

In i

L_l i

e 7

8 9 10 11 44 45 80 PERSCNNEL E XPOSURES NUYSER TYPE CESCRIPTidN I

In ninl@ M @l u

i 7

so

'2 i3

,ERSONNELim LR,,,

DESCRIPTION @

NUv8E R ininInl@l i

a u

80 7

8 9 11 12 LOSS OF OR DAMAGE TO F ACILITY 17R5 290 i

TvPE DESCRIPfiON rnT1 Ld@l sA 90 3

8 9 to 80012204I NRC USE CNLY

,,d,y,'@O,'Sco,,T,cN @

' '" c' '

i Il!Illllitlili l

m 2 o 68 69 I

8 9 10 910-457 0521

{

NAME OF PREPARER _ L C.

Tollisen. Jr-PHONE: