ML20206F296

Informs That Util 851018 Evaluation to Determine Effects of Overpressurization on Steam Generator Integrity Reviewed & Steam Generator Remains Acceptable for Continued Full Power Operation.Safety Evaluation Encl

ML20206F296
Person / Time
Site:	Davis Besse
Issue date:	05/27/1986
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Williams J TOLEDO EDISON CO.
Shared Package
ML20206F301	List: ML20206F296 ML20206F304
References
TAC-60062, NUDOCS 8606240412
Download: ML20206F296 (2)

Text

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, May 27,1986

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Docket No. 50-346 Pr. Joe Williams, Jr.

Senior Vice President, Nuclear Toledo Edison Company Edison Plaza - Stop 712 300 Madison Avenue Toledo, Ohio 43652

SUBJECT:

COLD PRESSURIZATION OF OTSG DURING TESTING On September 6,1985, while testing the AFW system, the secondary side of the 1-1 once-through steam generator was pressurized to approximately 1060 psig while cold. This condition exceeded the limitino condition for operation specified in Section 3.7.2.1 of the Appendix A Technical Specifications.

Action b of that section specifies that if those conditions are exceeded, an engineering evaluation will be perforned to determine the effects of the overpressurization on steam generator integrity. By letter dated October 18, 1985, Toledo Edison Company submitted the required evaluation. The staff has reviewed that evaluation and has concluded that the steam generator remains acceptable for continued full power operation. The staff Safety Evaluation is attached.

Sincerely,

" Din cws m.

Bai. %.

John F. Stolz, Director PWR Project Directorate #6 Division of PWR Licensing-B

Enclosure:

Safety Evaluation cc w/ enclosure:

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. Mr. J. Williams Davis-Besse Nuclear Power Station Toledo Edison Company Unit No. I cc:

Donald H. Hauser, Esq. Ohio Departrent of Health The Cleveland Electric ATTN: Radiological Health Illuminating Company Program Director P. O. Box 5000 P. O. Box 118 Cleveland, Ohio 44101 Columbus, Ohio 43216 Mr. Robert F. Peters Attorney General Manager, Nuclear Licensing Department of Attorney Toledo Edison Company General Edison Plaza 30 East Broad Street 300 Madison Avenue Columbus, Ohio 43215 Toledo, Ohio 43652 Mr. James W. Harris, Director Gerald Charnoff, Esq. (Addressee Only)

Shaw, Pittman, Potts Division of Power Generation and Trowbridge Ohio Department of Industrial Relations 1800 M Street, N.W. 2323 West 5th Avenue Washington, D.C. 20036 P. O. Box 825 Columbus, Ohio 43216 Mr. Paul M. Smart, President Mr. Harold Kohn, Staff Scientist Toledo Edison Company Power Siting Commission 300 Madison Avenue 361 East Broad Street Toledo, Ohio 43652 Columbus, Ohio 43216 Mr. Robert B. Borsum President, Board of Babcock & Wilcox County Commissioners of Nuclear Power Generation Ottawa County Division Port Clinton, Ohio 43452 Suite 200, 7910 Woodmont Avenue Bethesda, Maryland 20814 Resident Inspector U.S. Nuclear Regulatory Commission 5503 N. State Route 2 Oak Harbor, Ohio 43449 Regional Administrator, Region III I U.S. Nuclear Regulatory Commission j 799 Roosevelt Road Glen Ellyn, Illinois 60137 m