ML20128D767

Discusses Requirements for Rod Drop Accident in Operating Plants,In Response to 740611 Memo.Recommends That Rod Sequence Control Sys Be Installed in Listed Plants

ML20128D767
Person / Time
Site:	Millstone, Monticello, Dresden, Nine Mile Point, Oyster Creek, Pilgrim, Vermont Yankee, Quad Cities
Issue date:	08/09/1974
From:	Stello V US ATOMIC ENERGY COMMISSION (AEC)
To:	Goller K US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 9212070376
Download: ML20128D767 (2)

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[4 i. .y a Karl R. Goller. Assistant Director for Operating Reactors. L REQUIREliEltTS FOR R00 DROP ACCIDEhT Ill CPEPA11!iG PtMTS your memorandica of June 11. 1974 requestad that ue complete our review end evaluation of the additional inforation submitted by Vermont Yankee concerning contrcl red select panel tenplate.

Additionally, yo'; requested that our evaluation include acceptable solutions for the rod drop t.ccident for Ver: aunt Yankee as well as j other licensecs.

i We have conpleted our review of the additional information presented by Venaont Yankco on October 31. 1973 and have ccncluded that it does not alter the evaluation pravided in ny te"oren&n to D. J. Skovholt on August 31. 1973. Additionally, we have cenpleted our evolut. tion and have accepted the Pad Sequence Control System (RSCS) during cur review of the Browns Ferry application (copy cttached). --

Sin:e we censider that the analysis and safety requironents for thit .=.;W:nt rc: ult frem u.. u.n uv iemi uinty $""?. Me r::::=nd snat tne KbCS be installed in Venront Yankee on a schedule cer.si!, tent with the availability of the systou t.nd the ner.t cvailacility period.

For the sre re:sca ar.J ur.tr tha sur.e cocJitions, we reccanend .',

that the RSLS be installed in the follouing plants:

P,lant Docl:et fiumber '

Oyster Creek .

50-219 -

Three lille Point Unit 1 50-220 '

Dresden Units 2 & 3 50-237/249-11111 stone Point. Unit 1 50-245 /

Quad Cities Units 1 & 2 5 -254 255 /

11onticello Yarmont Yankee  % Clo-s 50-271 Pilgrim Unit 1 50-293 /./ ,

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.h gg, <--' I Karl R. Goller I believe that we have satisfactorily responded to your request, however, plesso fcel free to contact me if you should have further questions in this regard.

Victor Ste11o. Jr., Assistant Director for Reactor Safety Directorate of Licensing cc: S. liansuor. DRTA F. Schroeder. L:TR A. Gianbusso. L:RP S. Varga. L:kP D. Ziccann, L:0RB-2 F. Anderson, L:0RB-2 D. Ross, L: CPS -

11. Richings. L:CF3 T. Ippolito, L:EICS DISTRIBUT10ft:

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