ML20009C136

LER 81-003/01X-1:on 810226,steam Generator B Was Pressurized to 550 Psig.Caused by Procedural Deficiency.Valves Opened to Lower Once Through Steam Generator Pressure.Condensate & Feedwater Procedure Will Be Revised

ML20009C136
Person / Time
Site:	Oconee
Issue date:	06/10/1981
From:	Jackie Jones DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009C128	List: ML20009C127 ML20009C136
References
LER-81-003-01X, LER-81-3-1X, NUDOCS 8107200314
Download: ML20009C136 (1)

Text

__

a.s. u.a.- ..., aro.rr - -

1. ' UCENSEE EVENT REPORT EXHIBIT A conrnos.necx: 1 I I 'I I I

@ a s4.s = =r on r m a u.a a u . i= ,o. ric a. s.

Tm i S l Cl NlE l E l 3 Jg 0 l' 0l -l0 l0ve l 0 l 010 l -l0 10 "@la Al 1 l 1rl m 1l1e usa l

@ lis us'g r a . . . co i. w a e comrr ~

A , ",,,,,l L @ l0l 5l 01 01 012 I8 [7 @ l 01 212 I6 l8 i1 @ l 0l 611 10l8 l1l @

as a 14 s r s. sw a occmermm.see svent mars as.ontmars . ee  !

l Evewrnascairtion On February 26,AnoemosAat.scosssacueness 1981, the "B" Steam @ Generator was pressurized to 550gpsig.

g[

No systems or piping were damaged by this incident. The integrity of the

main steam lines, hangers, and the OTSG itself were v.erified.'~hus, this g g , incident was of no significance with respect to safe operation, and the g g ; health and safety of the public was not affected. p

~

El r ELTl I r

~

W- *"a"' s22.'.

c ca rem. / fog. '

loist [C I B l@ @@ Q@ [ VI A I L I V l El Xl@ &lE [g G g

. . ia i. is is ,. ...

unmar 'Tv M4 '*"co*E"'* **;%"' **""*"

@g _a 8f 1 lerrveea m

l4 l Of 0l3 l 1/l

[ 0l 1l, l, Xl g a,

l7l c :: = =, :um:-

l 0: of o gI ::=mr

~ ,::=:r m IgJ@(cf@ (z f@ (a@ gj@ ljt@ I Ll@

, 1 x ( 9 i 9 i 9p causs os.cmrTion Aeso commsenva acriores @

,,,,,l The major cause of the incident was the result of a procedural deficiency. ,

,,,,,, Valves 3SD-5 and 3SD-290 were opened in order to Jowe,r the OTSG. pressure. ,

, The Condensate and Feedwater procedure will be revised to lower OTSG level to

between 50% and 80% on the operating range prior to initiating FDW recirculation

[ A note will also be added to close the start-up block valves if the control ,

er s ofwensratus @ Ess?E IIIII W @ l0l0l0[gl NA l' l gl Operator O ErvYtionm@ g

,,'g,.,,,, .

Sh is is .e ,,

- -o a =.ame - riv u,,,v,,,. .. u ,,, @

li6.I E l @ g l NA @l l NA y

> a

• g, ,,

l517l l0 l0 l0 g = @ l

== r -ri @ NA g

,e e ;ta li la l l0 10l0 I m een escam m n =h NA g 7 8 s 11 12 "

Ne* NA rr m w @SeEm i E 7 "* @ "

mac use emi.y 12tol , @l NA l g,,,,,,,,,,,g s e ie ,, ,

• (704) 373-8197 8107200314 810610 PMCN :

PDR ADOCK 05000287 S PDR

___ , _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ - _ - . _ _ . . _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ . -_