ML20062G480

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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
ML20062G480
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 08/05/1982
From: William Jones
OMAHA PUBLIC POWER DISTRICT
To: Clark R
Office of Nuclear Reactor Regulation
References
TASK-2.B.1, TASK-TM LIC-82-276, TAC-44374, NUDOCS 8208130038
Download: ML20062G480 (1)


Text

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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 l 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.

i Morris of the District, the District committed to developing an interim 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 j while in a natural circulation mode.

Sincefely, I

I Y kg(jf W. C. Jones l Division Manager

! Produc% ion Operations

(/

l WCJ/TLP:jmm cc: LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Avenue, N.W.

Washington, D.C. 20036 OG l

8208130030 820805 PDR ADOCK 05000285 P PDR