ML20084A135

RO 76-05:on 760208,excessive Leakage Observed Through Several Containment Penetrations.Cause Not Stated.Repairs to Valves Underway

ML20084A135
Person / Time
Site:	Ginna
Issue date:	02/08/1976
From:	Platt C ROCHESTER GAS & ELECTRIC CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RO-76-05, RO-76-5, NUDOCS 8304050106
Download: ML20084A135 (1)

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[n Mr. .? h .es P . O "' <-i i : y . *E re

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?: Inrk Avenue F:tne of Pr.4r.uin, F % myl <.*.tri *Y.Cf ,

3UBJECT:  ? % rtsbi=: :::urr< n :n

• S 3 'i : Abner rsi e.::ra hill.'s Of pri- y r';*"*-

ment, cocpenents aiscovere:i vnile doing toe containment i nt e. .: m t e d ! Ns rs co .

rate. test.

Dear Mr. O'Reilly:

- 'Qais ir,-to-conf.irn rge phone.cel.1 to Mr. John Hannon-.this rornirig to. give hb ,. .

infor. ation on Reportable Occurrence #76-05 _

Pressurizatics of the contai==ent for the contain=ent integrated Icakns;c rate test began at 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> en Saturday, February 7 The 35 pais pressure une outnblished at O$00 hours on Sundny, Fabrusry_6,1976. .

Af,ter =nintn-ining the 35 psig pressure for approx 1=ately five hours, it be ste sp; arent 'thst t5ere wtn

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execssite IcaktQfe t'.rcugh r several ec5!-- ""it7e?ie r. rations. Further ,inve.iti.;. tie:n found the ec=ponents that were responsible for the excessive leakn6e to be:

(1) Containment Purge Supply Valve - Inside Contain=ent (2) Contair.=ent Purge Exhaust Valves

. (3) Motor Operated Valves #813 & #61L - acactor support Coolins (b) Check Valve /I'T13 - Nitrogen supply to the Reactor Coolant Drain Tank

-.Repatra are- umforvay to += enre 1 htei valves. . .'~r contrif n -ent . inter. rat.ei.itslu.m.

rate. tout will'be resuced as soon as repairs are cc=pleted. ll l

Verf truly yours.  !

p /r.:e \

0304050106 760200 PDR S

ADOCK 05000244 -

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PDR - I

.. Surer.in o te.:  ;

CEP/dg cc: G. J. Svarthout, 'R72 Corp. L., ' D . ' *G i t e , S,'.E Co r p ..

J . F. S'A e t. , R'.i&E Corp. -C. V. Ihr:3 f eb, DG'.E Corp.

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