ML20038A989

From kanterella
Jump to navigation Jump to search
LER 81-017/01T-0:on 810919,while Attempting to Initiate Decay Heat Cooling to Stop Steam Generator Tube Leak,Valve 2LP-2 Failed to Open Electrically or Manually.Apparently Caused by Bent Valve Stem.Valve Stem Replaced
ML20038A989
Person / Time
Site: Oconee Duke Energy icon.png
Issue date: 11/13/1981
From: Kutzer J
DUKE POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20038A987 List:
References
LER-81-017-01T, LER-81-17-1T, NUDOCS 8111240567
Download: ML20038A989 (1)


Text

-

a o

e

'emC PCaneOne U. s. NUCLEAA A Ecut.ATCRy COamhees:4cas 7.rn LICENSEE EVENT REPCRT EXM! BIT A ccNtact atocc I I I l i I

!@ uttAss miur :n tvn att ascuinto in. oaMATICM i .

Io iile el S I ClN l E l El :s2fg4 0 l0l ocan j0 l0l u w -esa 0l 0l 0l- l 0l .s Olg4wcaan 2s 4llj1;1[ljg{

rves a l 9 weaniesceae i. uw4 C*,,W" lati!

7 8 C 1@l015 f 01010121710 e4 el M m87 %ameta

@!O 19 l (vim?

et 40 1191811 OATE

@l1 1111131811

. 't 470 7 satt l@

so svtur :sscaimCN ANC PecS Asbj cChs(CVENCIs @

lain 10i September 19. 1981, while attempting to initiate decay heat cooling, valve ,

,,,3;  ;2LP-2 failed to open electrically. This resulted in a delay in stopping a steap

3 .i1 generator tube leak. This constitutes a malfunction which prevented operation ;

,,,,, ,of a system required to cope with an accident analyzed in the SAR and is re-portable pursuant to Technical Specification 6.6.2.1.a(5). Persennel and Sys-

!,,,,9 tems adequately controlled this event; thus, the health and safety of the i2... tpublic were not affected. I "c:Ta" *$$l idNSEe  ::= ceiswT ::ce st.es":e rOEE, 93,,;

I CIF [ g g g lB s g (V I Al t i V I El Xt@ l E j@ (J, @

. .. ,, i, ,2 . i. .

. OCgt.egaC3 e tVi tiCA .

ever-u. S.J.C,I.f e T MTiak

a. c. a ,.

s p*!.,T .

6 ,,',,a,q,,; ,.oI8I1I a a

(--J

=

l oi 1i7;

. a y

I d='r 1 l s =

lTl a

ga g

=

= w:: a:n ~ra r.. =n* 2:rix:..

%.3@(,*,,f!@ l;&C f@ @@ ' o I -..6 ! 6121@ 1.~: i ,a:Yi

@  ! @l i'E @ lWl013i0jg l l

  • M 3J e4 *t 42 3 e. et
.4i.,ss cese:iimcN Amo cenaterve ac :c .s @

i,,,,jThe apparent cause of the failure of the valve to operate was a bent valve i

,, ,,,, stem. The valve stem was replaced, and the operator was tested after the

,, ,,,, torque settings were recalibrated. The need to modify or to change the size ,

i, .:,Iof valve operator will be evaluated. [

r 6.e.! !  !

7 8 9 80 5 fus 4.CwtM OTHEM 57ATLS isCO m* 3tsC vtev 3f 5C.imCm Iir i s i (,X,j@gl O! O I O !@lRapid Shtitdown J U.s@l.e Onerator observation is is so I

a4.u

. . -o.s .. ..u . @

l ' 's i l,Z,] @. :. ..u .(,yg[ NA- .. .cm T @ "l l NA l

,...c

'.i. u,e,';u I i e- -7 ) lo 1 3Ia @ W @l=uca.-c @ 3.575 man-rem / maintenance l

l 'a

.i u u , -

l i t a l l @l i.Ogl=.. e NA  ;

7 a 9 il 12 go fvft ( Jh Oss I i ! s I t' ,Zj@l NA l

? 4 9 iG 30

.muaw Nae use caLy i: tst ,, @{ ,sc imene @ NA l tIiieii  : l t,l a 9 is sa se so Names es ,as7Anta 3. F. M-n p.cN E: (704) 373-7139 l

8111240567 811113 PDR ADOCK 05000270

_ _ _ . _k.._ _ . . _ _PDR. __ __ _ . _ _ _, __