ML20049A587

From kanterella
Revision as of 03:36, 11 March 2020 by StriderTol (talk | contribs) (StriderTol Bot insert)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
RO 81-32/01P:on 810502,feedwater Vibrations on a Steam Generator Feed Line Damaged Snubbers,Shims & Shim Retainer of Vertical Energy Constraint.Cause Under Investigation. Steam Release Calculations Will Be Refined
ML20049A587
Person / Time
Site: Beaver Valley, 05003348
Issue date: 05/04/1981
From: Werling J
DUQUESNE LIGHT CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
BVPS:JAW:1164, RO-81-32-01P, RO-81-32-1P, NUDOCS 8106050148
Download: ML20049A587 (2)


Text

AHf/f1A=-

,Y pQ

'AVN ouquesneusta e=*-

  • A .

'*'* - 041QtlFSWR I.tcitt fX1ffrANY Menver Valley Perver Station Foot Office Box 4

.ih i pp i respo e t . PA 14071 May 4, 19A1 RVPM t JAU e 11(>4

-  ! s to/

Me.ever Va 1 t e y rence 'I t a t l e.n , l' nit Hay . I gi 4 twcher Nn. 50 1 M , I.f eenac Mn . PPH f.6 1 f*

f.I R fil '82/OlP - ..

h6 L 6

,. J i i - .

g 1.voctA2IL M 1 p COG 1533Cl4 H.. P. St . retar; li t r ec t ne of Peg.el at ion Unitel Statea Itne lene M e n is t .= t ne y Cer,*fmateisi Fepton 1

./ .i > - 30'\@

.t, r... - .. . . . i ..

Feng s.l Pruaeln, Pennavlvanfa 1940(i Dest lir . f:, tert .

1 acreer.l.nre wi t h Apper,4 t n A, Benver Va l lay Tectnele n t Spectftention 6.4 f.M.5, the ( al l nie l rig w a s r e s.ne t ed b y t e l e phr' tie to the Witt' R ea l ef an t.

Innpectne, He. 1 vi . Itegise t , et 0l.10 henrn, end to the Fitr, wie the Fmergency Mneietaafvan Sywtc=. at 0770 honte on Itay 7, 1988, At 0131 bnnea e.in Pt n y 7 , l'161, a f eed f le.ss pre *ter t hars n t en.a f l eme alarin we ar e n's t ed on i nc ident te t tle e facetustet vibration. F( ema) cont. int of the "A" ete - gener ne ne (c t flese#:nntrol valve wee p e nuw.e d a n.1 turbine loa.1 vae r e.t... e t in en atteerpt to stabilire the "A" nterim generator, Tvn v ore vibrations vere e. rettenced velow t<>the re.ictor trip nt 0108 konge dua e n hinh-blah level in tha "A" arca= penernene.

At m 8.n n t l '4 t H) loint a on May 7, 19111, ey, cancan-ent ol' t=*se*= 1 tevealert that i~ ' = t da""ge wng t enf ineif t o (fie "A" fand line. Ime st a-a g e.1 ennbhere. two Inone enebbeii, d ev = 1 p m to the elil e e evid ch fia retainer sif crie ver t Icesi energy ennetrefne, end dn.are to atrncenemi bolta of a n e r e n.1 sentleal energy constraint w e e .. ebeceved inntac rent a l ement . Tha "A" t-atn feed reentating value mustained

, atar.innereed i a e db a ci. )cuer, .e 1 e.on e actuneor, nii.1 1.e #4 en va l ve. niem. The "A" a n. t "( . " bypmaa f I ni, centei1 vsive.e woe ' a I ne d b e ott eet ( nr t r ue-an t afr 1inee. Mieer a===ge in the fee.l Line innu t llar ies waas m i no sibste rved . - - . - - - - - -

8106 o n o /W y .

Mr. M. M. Ceter '

Ney 4, 19H1 IWllf.IAW!11f.%

t'e nt e 2 r 4,e se t a f.ml ) I n e av I . n .e e ii pe. r { ne c.1 en 1. t I s e vit.,nrInne in g h ,. p n .i t ,

1.i v . e I y t o I <.n.i es v t n o t t ru. O ng gn et a t e : w. i ne I lic a n o t.t c o f flic vih r a t l atia .

,4.f .t i e I ..n )

1, f e., wi e i nn vi11 (allew in t l>* 1 % ele'y Il<< nice I v t.n f Meye r F . .

I's. l l o. e i n ,s. sie g l ..e stip, si a 11 g),t e -. .un t of c e r e., gr e , s , t e,s . c ci f eem e t,,

g. t ,. .. e g , , . -. , , , ) s . r . . t v .. t,anar p T s .. 7 4 wo: g,,aent in e l.e- 1,.ller wri t e r

(- .,..--4..... -.,..i;.., l.-e em a I ,. p e o r e -e a ,1, v. " e e e niam e s.ei t. l se c an t. ( sen t ee

t. 'e ,+tc..e -( e I.I n i ... r .sp r t ei l '.e si t s o + pl.e e
  • liv. ee.nnervat(VC g ,g M .g g , , t . .e .. .. }. 3 , c y . ,. .. ,1 c 4

..v., ife . i, ,..e n.) e 1.,s e i I,.. n . . l .. p .:

. 1, . . i e i .. . l.

, g.n , g gim y (ese l t tie r.c e es t c. i n e 1,u.., c . ..? g, t i 1

$0$ MfC. tr- ei*i f. e e . e. . . t i.. t t # ,,e

,..,,1i. I,. c.. e I.It -r..e Veey t o nly your se ,

s

{ ( hp. u (f J. A. 1/tetIng

?opcv int erufent e.e ! I' ( e g , t . e 4 e f it aet9yerve n f T. I' r o p t inr4 Ant 1y Ie t n t t .) I',e n e e a tio. I ea r f.e g n I a f'.e y t. e'a. . I a a I t ti U.i mli f e.p o e .o , 12 C. 788 W e let. een,, v e d a t r e- t.f ( .s a p, < t l en, yt es t Fnf nee craest IIe * 'l *p i a t i ** r f. '

t,'n t t e. ,e c:,,en ti,,e i c 7, , li e pie l n e n y ., t w.r f e. I a.,,

tt+ghfr ye.us, 91, C. 7 8 6  % 'i',

a ti . 7 ( h -.ic y , (W l' 5 1.

  • s'ene l esp I's enjir r f )lattert t ten i e o.l 13.ie an Ibie l eie r 5.r 0.*l at tot y O ne...l n n (. nt p nl.f op e ..n , It . C. */ f l i ', '. .

gi A, p a .1, .. .. n , t!..< l a.s e f. e g..el M o r y f ee-~ 1.ie l et ti , It's pf: fi t t c I na.per e est-e.. t r e , .* ; e r ., y A.. tvetn (cno ce, t s 1. e. t l t i. , (:ri f f f r.r ei f e 4: r . re. .< 1.1 . r.ic: eer y M it no J l'ng,I ne e r i ng , I's e t niese, yle H, , e ._ 1. .. A

  • e . . e 1, p/t l'.it.1 I c ilt t I t t ien Os w= 1.e e I oeg , 113 e .1 e l.nt g , PA

- - - - . _ . . _ _