ML20136C939

RO 79-27:on 790925,during Routine Engineering Review,Section of 4-inch Cast Iron Floor Drain Passing Over Station Discovered Not to Be in Accordance W/Design Drawings. Inadequately Supported Drain Piping & Duct Work Removed

ML20136C939
Person / Time
Site:	Millstone
Issue date:	09/25/1979
From:	Opeka J NORTHEAST UTILITIES
To:
References
MP-2-4142, NUDOCS 7910180205
Download: ML20136C939 (2)

Text

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Sepreber 75, 1979 MP-2 4142 tar. n o vr . n . s:r i c e n i n-c t o r, paoinn i nf f ice of tesp*cttnn anet Entnrcwent n . 5,, r;nci car necula tory I.nrr,is . ion r,11 r,, r t, ra c,ne ,

v ing nr Prou la . Unnos yl van ia 194ct, gerer nc.- rar6i;tu a r ratinn iic<nse Wr,.fFm 65 Docket N. W.736 steparrAte occurrence 50-336(19-27 near tte, r,cter-This t e r s er prnv irf es nntificet.fon of Reportables Gccurrecce 19-77 pursuant en ex. ree.ir<v- nt. er Mii n. toe. un s t 7 p.nre daw A Techn tral Specification %

3 ction r..U.1.8.5 "h e retvirt ,:ncreens t h. 4Wovery of con titirens not

.:pe r i f Se a I ) y r rms irtcred in ihe %AR nr f or;%iras Spec.i firer ions; thet r p.<pe f re re- diai ar' inn ne carew

• Iw- rteatu res to preven .

tree em 1+ t.enr.e 1 or devcla,evnt af an unsafe umriition.

i therfry a enntinn plant. ca7 tnaarfrgy revic-<. 1 t m.ee s deterrs t nett tha t. a l sect. inn of 4" rest ernn finne <4ra te p f v is,o pau.ina cver e><.h of tbn I station tweraries wa s nn e -u ppo r ted in accorvtance with desion drawings. l Tha sutumr t ece;. air m s.nte. For t h f t pipina inrin<tevi We ic h1ngers to c en(n- 'en tha pl ant <bsirrn rrit.rIa rne tbe protect inn of safety ral.ated en, h r--.i t. Ter- <la--2<:* hv ana-sa rm ey cal a t a<t aqui t ywnt ( wa isrisc 7/1 r ei toria) , Inc reve l f s af .an at-iwi f f t onQincering .noal ysis (feraonttrated ,

that t he rf ra ire 14no sup;mrt, would fh f i dorfe'? a des Qn M5 h sai'nic event , r. rca t inn tha p t en t 'i .il for din.ece to ti a station ha tt. pries frm the unrestrairmi drain pipino 8k that me t t ons o f t he ha t t ery e v b.m s t fan duc t f ra for mh tuttery rmwi d id not art *<ppat al v rreml y wi t h t he

• eWair. 7/1 de'tice Critor ia. A

$ (, liar me hu il t cra f ence inq anni vs is <iem<ms tratoct the Inten t.f ai for ba t t er v <f,v age f ra-- reef inns of the rfurf ing which centri haceae unrestraintw1

<turing a s 6v ir, evcat, l

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• Mr. na vre H, crier U. %. nsclear namnistnry Cerv'4ss tnn - Pace 7 Af tor et tseve,sions with yrner nrrira, i t wi , ccmcle><fert that. t3w potential s olu ,6<

val.=t =1 <t - ar;. to rinth s tat in<, ha r t erios reas i t< d in plant oner.nt$nn y r Tsc brg ir ni '.pn: i f S ca t. inn .1 U. .T. t. inr* <:nn<1 ; t f ems, wre in es cems of t hnso .vt et ru v ert in Ac t inn Statwent h of Speciffcation 3.R.2.3.

A rr o ntirr:1v. preparar.ione, wre r ade to procom! to place the plant in e n 1 <1 s N ,f d o - # thin 30 hewsm.

Concurreat wit.. the twoparat.inne (n r c N e teter.si , the irimiamnit=Ty supported rf rain pipir:9 aewi dort w rk Toraimi in the v ic ini ty of each ha t tery wre r aw av e<*. The r m val of the drain pipfnc an<f <iuct wrk precluded proceeling to col et shu tdenat _

Any fortbar infrirmtion will be p er w frfarf in the twi week report.

Yours truly,

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J. F. Op* Ira St+t. ion Superintendent, -

7tf1istona EAclaar Power Statlaws olio /}Cr/1Ic,

<;c : Director. O f f' ir e a f f4a nag <ecrit Infonnation and Progret Control.

W 'hington. fl.f.. (?) ,

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