ML19343A174

LER 80-046/03L-0:on 800813,steam Flow Channel Associated W/ Flow Transmitter 475 Failed Low. Caused by Defective Loop Power Supply Cord. Cord Replaced & Channel Returned to Svc

ML19343A174
Person / Time
Site:	Farley
Issue date:	09/08/1980
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19343A170	List: ML19343A169 ML19343A174
References
LER-80-046-03L, LER-80-46-3L, NUDOCS 8009160323
Download: ML19343A174 (1)

Text

-

. Lit.crocc tv cm a nerun : ,

i .*.. E 'CONTCOL BLOCK: l i

l l l l l Ih s

(PLEASE PRINT CR TYPE ALL REQUIRED INF*uRMATIIN)

% IU AS l1.L8CENsLL l J lMCODEl F l 1 l@l 0l 0 l -l LICENSE le 13 0 l 0Nut.l sEM 0 l 0 l 0 l - 25l 0 26l 0 l@l LICENSE 4 TYPE l

l 1 Jul 1 l571GATl 1 l@

68 l@l 3 s sOuRC Ql 60 0l 685] 0l 0lcOCnET 0l 3l NUMSER 4 l 8 @l 0 l 8 l1 l3 [ 8 l0 l@l 0 l 9l0 Gd G'J t.V EN T OATE 24 73 REPORTl 818 DATE l 01@ 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h ,

Q l At 1335 on 8/13/80, the steam fldw channel associated with flow r.ransmitter (FT) 475 g, a 3 lwas declared inoperable when it' filled low. Tech. Spec. 3.3.1.1, in part, requires  ;

- g lFT475 to be operable. Tech. Spec. 3.3.1.1 action statement requirements were met.. The j o 3 gh ealth and safety of the public were not affected by this occurrence. y O 6 l l 0 8 l  !

> e, -

n

' SYST E M CAuSE CAuSE COMP. VALyg CODE CCOE SusCODE COMPONENT CO DE SuSCODE SuSCODE os lI l B' l@ y@ l Gl@ l Il Nl Sl Tl Rl 'U[@" l P l@ ]@

. . stoutNTiAt occuanE$ Net REPORT REVistON LER EVENT YEAR REPORT NO. CCX TYPE N O.

h ,agg/RO a; l 8l 0l [-

23 J l0l4l6l 24 26 y l0l3l 29

]

30 Q

31 W

37

._2 4 22 27 28 TAX N AC ON ON PLA T M T HOUR $ 27 $ $ aT I FOR1 8. Su PL E MAN FACTURER

[h! Zlh 23 34 I35 Zl@ d h 38 l0l0l0lUl 31 40 l Nlg g g g g 48 42 43 lWl1l2l0 g 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o lThe steam flow channel failed low as a result of a defective loop power supply card {

i l (PQY-476) . (CuIl had failed chopper circuit transistors.) The card was replaced and I

, 2 l the channel was returned to service at 1845 on 8/13/80 ' follow;ng successful performance g

,,3 j of the surveillance test. g i 4 l I

, s 9 80 5A  % POYdER CTHERSTATuS I RY DISCOVERY OESCRiPTION t 5 W@ l1' l0 l0 "l@l" NA l l A l@l Main control board indication l

' EnViTY A CO TENT .

(ELEasEO oPRELEAsE LoCATiO'N or RELEASE h 7

1 6 s9.

[.Z.] @ [Zj@l to AuousT NA Or ACTIVITY u

[

4s h l NA so l

FERsONNEL EXPO:URES ,

NuM8ER TYPE OE sCRIPTION ,

t 1 NA l l 0 ] 0 l 0 l@l Z l@l ,

,ERso~~El',~2u'Jits hum 8ER OEsCRieTiONh '

i a s.

l010l0l@l n n NA

. o l

'st'E " s?l,^?T JN '^c' " @

d E l0ZJ@l NA '

l 3 9_ iO 30 NRC USE ONLY ,

Qr issut a e

@OEsCRiPTiON h l

lo NA l sa ss g g g g ; y ;; g ; g ; l} ,

.0 ;;

NAM FPn . . absW, M PHONE:

• p 8D 0 916 0M2 hPARER