ML20009C368

LER 81-003/01T-0:on 810226,B Steam Generator Was Pressurized to 550 Psig.Caused by Procedural Deficiency. Once-through Steam Generator Pressure Lowered.Procedures for Opening Startup Block Valves Will Be Revised

ML20009C368
Person / Time
Site:	Oconee
Issue date:	03/12/1981
From:	Jackie Jones DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009C362	List: ML20009C361 ML20009C368
References
LER-81-003-01T, LER-81-3-1T, NUDOCS 8107200491
Download: ML20009C368 (1)

Text

. *

. p .

e .

Mac PORM 368 U.S.NOCLEAA RECULAToRY COMMIS$1CN (7 779 IJCENSEE EVENT REPORT EXHIBIT A CONTRCt. StocX: l I l \ l (PLAASE PW NT CA TYPt ALL AEQ1sAED INFCAMADCN) i l

e lh j

E l el e sc I .nucunsascece I r l r l 3l@is0 l 0 l -I 0 l 0ucause i.

! Ol wnoi un l -l 0l o a,l@ a4 l 1l 1 l1n I:l aj@lsecrse@

ucv.sa l

Corf 104:1 %u% sol L @l 01 5 luxar 010101 2i 817se @lse 0 l 2121618! 1 @l :s0 ! 31 11218 l 1aol@

> e si wu.an evoir eara 7 . ,ce.ro4ra EVENT OESCRIFDCN ANO PRCSAStf CONSECUENCES h I o f 2 I l On February 26, 1981, the "B" Steam Generator was pressurized to 550 psig. t 10 6 2_1 1 No systems or nining were damaced by this incident. The integrity of the  ;

is!.iimain steam lines. hancers, and the OTSG itseiz were verified. Thus, this l l o ,5 l l incident was of no significance with respect to safe operation, and the j Fo t e l t heal .t. and safety of the public was not affected.  ;

1 o 6 71 I l l o !a l ! I r ee ao

" cec's" -

• !$$E suYcEEs cemacasur cect recs su"NUse '

loist l Cl B l@ W@ (,J,J @ l V l A l L l VI E l X I@ l El@ l G l @

, . . io i. is i. i. .

is .e,u. ri.i.. car =a. oc=ua.o.CE ,,nm,. a vision.

ts .,.o sviarvoa coc.

O'7 ,ag 1811l [- J l O f 013 l l/l 10 l 1 l l Tl l--] l G[

2i a n 2. a ar s :s sa si n E aY E EE o!!E'Er ** E ,8a". Us. "E",',f7

• m oups @ 'Ee*Ev'"rE' ma'av"Iac"E" Ten l X,,,gl2 Gl@ al,,2J@

u l Z l@

a l O!O!0l0l 12 .o

[,Y_J @

.i lY!@ la L l@ l v l o l o l olg 2 ,,

cAuss cascarenca ANo ccamacnvs Acnous @

litol l Tho maior cause of the ir ident was the result of a procedural deficiency.  ;

@ ,,j l Valves 3SD-5 and 3SD-290 were opencd in order to lower th OTSG pressure. ,

m LProcedures will be revised to specify that the startup block valves be open ,

,,,3]l prior to entering feedwater or condenser cleanup mode.

tJ j.4.J l _

1

1. #2E" vcwin erwu sTArus @ UES N cascovemy essenimca @

f*: ! S I {,jl_l@ l 010 { O f@l NA j lAl@jOp-ratorObservation l 7

a a , c' 6 i2 is a. **

• so  ;,

est Asas an =stzAss .meuntercnvnv@ NA tocarica op astaAss @

NA l' (s l l 7 I h Qf@l l l

' ' eenscan'd is,Sts ** **

ww.e . rm eesca.mca @

l i I 7 I I o l nl n I@[y,,J@l NA [

' .sc,.~ e'u' mLs '*

%=.in :sscaimeu@

[T171 l 010 I o l@[ NA l 7 8 9 ii i2 gg

'Si's "*".Ye"',*,'e',,** " @

NA l,LL.J.1, zJ@li. ,o l

,ssue$' . Nac use cuty

[,2_L_l d@5"scaimea@ l NA i ji iiiiiiI([tl s e to sa so ao NAus en e,.:PanEn J. L. Jones ,,cy,(704) 373-8197 8107200491 010312 PDR ADOCK 05000287 S PDR

- , - - - -- ,. . ~,*r_m ' - - - ' " "