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MONTHYEARML19351D2691980-10-0606 October 1980 Forwards Status Rept Re Implementation of NUREG-0578 Category B Tasks & Util Position Re Addl Requirements of TMI-2 Task Action Plan Per NUREG-0660.Requests Deferral Until Sept 1981 for Related Tasks Requiring Outages Project stage: Other ML19339A6741980-10-31031 October 1980 Forwrds Info Re Environ Qualification Tests to Be Conducted within 2 Yrs on Equipment to Be Used at Facility in Response to NRC 801001 Request.Schedules Are Set by Vendors & Util Contact Project stage: Request ML20005B5211981-02-18018 February 1981 Sys Description for Reactor Coolant Gas Vent Sys Project stage: Other ML20005B5121981-07-0101 July 1981 Forwards Five Drawings,Design Description & Procedural Guidelines Re Reactor Coolant Gas Vent Sys,Per NUREG-0737, Item II.B.1 Clarification Transmitted in NRC . Aperture Cards Are Available in PDR Project stage: Other ML20010J0261981-09-17017 September 1981 Forwards Corrected Discussion Section of 810701 Response to NUREG-0737 Re Reactor Coolant Gas Vent Sys Project stage: Other ML20038A9211981-11-19019 November 1981 Forwards Commitment to Meet Technical Requirements & NRC Implementation Schedule for NUREG-0737,Items II.F.1.1 & II.F.1.2,per 811020 Request Project stage: Request ML20039D6111981-12-28028 December 1981 Forwards Update on NUREG-0737 Items Implemented or Required for Completion Prior to 820101 Project stage: Other ML20050B8731982-04-0101 April 1982 Requests Delay in Implementing Natural Circulation Cooldown Due to NUREG-0737,Item II.B.1 Which Precludes Use of Reactor Gas Vent Sys (Rgvs).Proposes Implementation of Natural Circulation Cooldown Procedure Upon NRC Approval of Rgvs Project stage: Other ML20052C0681982-04-30030 April 1982 Forwards Addl Info Per 820318 Request Re Pressurized Thermal Shock Issue.No near-term Pressurized Thermal Shock Problem Exists at Plant Project stage: Request ML20052D7131982-05-0303 May 1982 Advises That Addl Info Re NUREG-0737,Item II.B.1, RCS Vent Sys Will Be Provided by 820601,in Response to NRC .Delay Due to Extensive Scope of Work.Info Is Being Compiled by C-E Project stage: Other ML20053D7831982-06-0101 June 1982 Submits Addl Info Re NUREG-0737,Item II.B.1, RCS Vents. Util Has Completed & Included Instructions for Operation of RCS Gas Vents During Normal & Refueling Outage Operations in Operating Instructions Project stage: Other ML20062G4801982-08-0505 August 1982 Advises That Procedure for Natural Circulation Cooldown Implemented,Effective 820630.Procedure Will Be Modified to Incorporate Use of Reactor Gas Vent Sys.Sys Could Significantly Reduce Time to Achieve Cold Shutdown Project stage: Other ML20077K7821983-01-17017 January 1983 Selected Operating Reactors Issues Program Ii,Rcs Vents (NUREG-0737,Item II.B.2), Final Technical Evaluation Rept Project stage: Other 1981-09-17
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Omaha Public Power District 1823 HARNEY e OMAHA. NEBRASMA 68102 e TELEPHONE 536-4000 ARE A CODE 402 August 5, 1982 LIC-82-276 Mr. Robert A. Clark, Chief U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of Licensing Operating Reactors Branch No. 3 Washington, D.C.
20555
Reference:
Docket No. 50-285
Dear Mr. Clark:
Natural Circulation Cooldown Procedure for the Fort Calhoun Station Omaha Public Power District's letter (LIC-82-141) dated April 1, 1982 detailed the District's plan for implementing a procedure for conducting a plant cooldown while in a natural circulation mode.
The cooldown procedure prepared by the District had relied upon using the Reactor Gas Vent System (RGVS) to achieve cooldown; thus, the procedure could not be implemented until Commission approval of the RGVS had been received. As a result of subsequent discussions between you and Mr. K.
Morris of the District, the District committed to developing an interim i
natural circulation cooldown procedure for the Fort Calhoun Station which does not rely on use of the RGVS.
This letter is submitted to advise you that, effective June 30, 1982, the District implemented a procedure for natural circulation cooldown at the Fort Calhoun Station.
It should also be noted that once approved by the Commission, the exist-ing procedure will be modified to incorporate use of the RGVS, since use of the RGVS could significantly reduce the time to achieve cold shutdown while in a natural circulation mode.
j Sincefely, I
I Y
kg(jf W. C. Jones l
Division Manager Produc% ion Operations
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l WCJ/TLP:jmm cc:
LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, N.W.
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Washington, D.C.
20036 8208130030 820805 PDR ADOCK 05000285 P
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