ML19308A441

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Forwards to Licensee Requesting Addl Info Re 790925 Incident Which May Have Generic Implications for Westinghouse-designed Operating Plants.Requests Owners Group Consider Encl in Preparing Generic Emergency Guidelines
ML19308A441
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 10/03/1979
From: Ross D
NRC - TMI-2 UNRESOLVED SAFETY ISSUES TASK FORCE
To: Reed C
COMMONWEALTH EDISON CO.
Shared Package
ML19308A443 List:
References
NUDOCS 7910180050
Download: ML19308A441 (1)


Text

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OCT 3 B79 Mr. Cordell Reed, Chairman Westinghouse Owners' Group Commonwealth Edison Company P. O. Bax 767 One First National Plaza Chicago, Illinois 60690

Dear Mr. Reed:

SUBJECT:

SEPTEMBER 25, 1979 INCIDENT AT NORTH ANNA UNIT 1 On September 25, 1979, the North Anna Unit 1 plant, which uses a Westinghouse-designed nuclear steam supply system, experienced a turbine trip followed by a reactor trip.

Subsequent events which followed led to a release of radio-activity to the auxiliary building. Our preliminary investigation of this incident indicates that it may have generic implications for Westinghouse-designed operating plants.

Enclosed is a copy of the staff's September 28, 1979 letter to the North Anna Unit 1 licensee req'uesting additional informa-tion concerning the September 25, 1979 incident. This copy is provided for your information and use.

We request that the Owners' Group u nsider the concerns identified in the enclosure to the September 28, 1979 letter in the preparation of the generic guidelines for emergency operational procedures.

If you have any questions about the contents of this letter, please let us know.

Sincerely, bs

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D. F.

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., Director Bulletins and Orders Task Force Office of Nucleir Reactor Regulation

Enclosure:

i As stated cc: See attached lists 7910180 O [ O l

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rz Distribution List - Westinghouse Electric Corporatior.

E. Case R. Mattson E. Jordart ILE D. Eisenhut P. Boehnert, ACRS TIC D. Ross TERA

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4 "m.52 JRBuchanan, i; SIC D. Vassallo I;RC PDR NRC Local PDT

,4. F. Kane Docket (Central) Files T. Novak Z.Rosztoczy A. Schwencer D. Ziemann

0. Parr J. Stolz S. Israel L. Rubenstein R. Baer P. Matthews

. G. Mazetis P. Norian S. Varga -

P. O'Reilly F. J. Williams R. Woocruff, I&E K. Mahan

Trarmell, III J. Lee Sa-,ill E. Grices A;R$ ;16) 5E Chron File r ; File c:

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