ML19322C372
| ML19322C372 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/09/1972 |
| From: | Schwencer A US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Deyoung R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| TASK-TF, TASK-TMR NUDOCS 8001160907 | |
| Download: ML19322C372 (1) | |
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1&lE FOR H. C. DEYOWG C0!" CIT ON D0fCllIS IETTERS An enluation, includtrg recomethiticco en the Dorchte prcblent, was
':R !. ond ident:fici in (nota cf, February 7; (j_dc.,by it. Faunre r cf 19tah ILac rec =colattens vercs 1) that tha Vestinghouso ILCA
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evidence be revteved by an ECCS expert, 2) that D3L corduct a review -
to ir cure purgo valvo closure, and 3) that we reply to the latest i
Dzchte Letter baced upon precently availablo inforcation. These j
recor.s er.htiens still stand tcday.
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. In reviewing the pr$ posed reply to Dorchte, F. Gehreeder ra tecd questicna l
tib zut.s failure of the prescurizer r. ara sy and inclaticn of the contain::ent building. The Vest.inchounc reply stated that prirary protection for the L
care in 1ruvided by the accumuhtors for break sizee of 6 inches equiva-lent diureter end creater and tivtt no clad dage to expected. Extrapola-i l
tien frca 6 inchen to the site of a rmr.v<ty is covere encush to cuggest furti.ec ccafirr.ution fro a Vestint;hcuse. Vo chare the cencern ubcut
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contlinir.cnt toolaticn md h Ave identified pre ticuely that a ecre thorough
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i review of this ccquentini events tyi.c cf accident while ~rurging ahculd be ut.dertaken.
Iyohve reccidN1 thee let'tcisfrc:n Doi.chlE)and love previoualy replied l t to the fli o t, two. The intent cr this letter is to gru/ide htn with the l bent infon aticn irerently available with rec:cct to his concerns, tsnd l to ;olitely turn orr this continuing back and forth corrector.dence. i i If further technical evaluatton is Judged necoscary t rior to re;1ying l to Datchte, I cui;cest tint the evaluatica.ard reply. be accigned to,the { pressure-pre 1'estingh uco branch..JBocause of;the coincident pressurizer; naroirinte ssurizer.xlevel asiect cf thel postulated _ accident, it is-( tunLque:to Yestir16hcuse plants. Special expertisc for the LOCA ord z i contain:i.ent isolation acrocto eny be required fre:a ether branches such i I as the Ranct.or Fystern Dranch cf D3G nna the Cortsin: tent Systen.n Branch G j of D3L. I heio this inforr.ation vill clear up the bsckgrcund for prWs/p f rding a, i reply,.to, Dol chio at this tLee. Copics cf the7 estinghouse replyJto tho' R, Dorchie 'rclated question for the Kcvaunce aps lication and of the l j 3 February 7, note of H. Paulkr.er are encloce1 vith the rtatorial folicvs I ins the Dickgrcund Lb. Original Signed by l i LNLert Schwenece A. Schwencer ) y ]/.' PVR-4 4 bd/ i Division of Reacter Licensin;'/ p /[ W 1 /, 3 ,J,,,/), /r ' W7 i ec2
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