ML19323C427

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Responds to IE Bulletin 79-28, Possible Malfunction of Namco Model EA180 Limit Switches at Elevated Temps. Identification of Switches Has Required More Time than Anticipated.Util Will Respond as Soon as Possible
ML19323C427
Person / Time
Site: Wolf Creek, Callaway, Sterling  Wolf Creek Nuclear Operating Corporation icon.png
Issue date: 03/06/1980
From: Petrick N
STANDARDIZED NUCLEAR UNIT POWER PLANT SYSTEM
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-28, NUDOCS 8005150518
Download: ML19323C427 (1)


Text

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PDR 8005150 6/ 7 LPDR TIC NSIC SNUPPS CENTRAL FILES i Standardised Nuedeer Unit Power Mont System 5 Choke cherry Road Nicholas A. Petrick Rockville, Maryland 20850 Executive Director (301) 84M10 March 6, 1980 SLNRC 80-11 FILE: 0278.10 SUBJ: IE Bulletin No. 79-28 Mr. Boyce Grier Director, Region I Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 631 Park Avenue King of P vania 19406 DocketN65:' STN 50-482, STN 50-483, STN 50-485, STN 50-486 I

(

Ref.: SLNRD-8025' ated February 1,1980, Same Subject

Dear Mr. Grier:

This letter is submitted in response to the subject IE Bulletin for the

, SNUPPS Utilities, Kansas Gas and Electric Company, Union Electric Company, and Rochester Gas and Electric Corporation.

The referenced letter reported that our investigation concerning the planned use of NAMC0 EA180 switches was not complete. The identification of these switches in the SNUPPS design and the development of plans for corrective action have required more time than had been anticipated. We are expediting the action required by IE Bulletin 79-28 and will provide the NRC with a final response as soon as possible.

Very truly yours,

\ DTNC NicholasA.Petrick(

1 RLS/dck cc(Mr. James G. Keppler, Director, Region III, USNRC Mr. Karl V. Seyfrit, Director, Region IV, USNRC Division of Reactor Operation Inspection, Office of Inspection and Enforcement, USNRC, Washington, D.C. 20555 l

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