ML20100E227

Notice of Denial of Amends to Licenses NPF-10 & NPF-15 & Opportunity for Hearing Re Proposed Tech Spec Change to Lower Min Allowable Value of Azimuthal Tilt Allowance to Reflect Reduced COLSS Tilt Estimate

ML20100E227
Person / Time
Site:	San Onofre
Issue date:	03/01/1985
From:	Knighton G Office of Nuclear Reactor Regulation
To:
Shared Package
ML20100E200	List: ML20100E197 ML20100E207 ML20100E227
References
TAC-54704, TAC-54705, TAC-55997, TAC-55998, TAC-56005, TAC-56006, TAC-56007, TAC-56008, TAC-56009, TAC-56010, TAC-56011, TAC-56012, TAC-56013, TAC-56014, TAC-56015, TAC-56016, TAC-56017, TAC-56018, NUDOCS 8504030318
Download: ML20100E227 (3)

Text

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UNITED STATES NUCLEAR REGULATORY COM4ISSION SOUTHERN CALIFORNIA EDISON COMPANY, ET AL.

DOCKET NO. 50-361 NOTICE OF DENIAL OF AMENDMENT TO FACILITY OPERATING LICENSE AND OPPORTUNITY FOR HEARING The U. S. Nuclear Regulatory Commission (the Commission) has denied in part a request by the licensees for an amendment to Facility Operating License No. NPF-10, issued to the Southern California Edison Company, San Dieoo Gas and Electric Company, the City of Riverside, California and the City of Anaheim, California for operation of the San Onofre Nuclear Generating Station, Unit 2 In San Diego County, California. The Notice of Consideration of Issuance of Amendments was published in the Federal Register on November 21, 1984 lf (49 F.R. 459641.

t The amendment, as proposed by the licensees, would change the Unit 2 and 3 Technical Specifications to revise the minimum allowable value of the addressable constant TR (azimuthal tilt allowance) from 1.02 to 1.0 in Table 2.2-2, " Core Protection Calculator Addressable Constants". The purpose of the proposed Technical Specification change to lower the minimum allowable value of TR is to reflect the reduced COLSS tilt estimate in the situation where

,j there is no appreciable azimuthal power tilt in the core. However, since the

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minimum value of azimuthal tilt is 1.0, use of 1.0 for the TR in the CPC would result in frequent occurrences of the azimuthal tilt exceeding the TR, and f

therefore violating Technical Specification 3.4.2.3.

This would increase the burden of the plant operators for compliance with the Action requirements specified in the Technical Specification. Therefore, the proposed Technical Specification change to reduce the minimum allowable value of the TR from 1.02 i

to 1.0 is not acceptable for the SONGS Units ?. and 3 Cycle 2 operation.

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.! i By April 14 1985, the licensee may demand a hearing with respect to the i

denial described above and any person whose interest may be affected by this proceeding may file a written petition for leave to intervene.

A request for a hearing or petition for leave to intervene must be filed with the Secretary of the Commission, U.S. Nuclear Regulatory Commission, Washington, D.C.

20555, Attention:

Docketing and Service Branch, or may be delivered to the Commission's Public Document Room, 1717 H Street, N.W.,

Washinoton, D.C., by the above date.

A copy of any petitions should also be sent to the Executive Legal Director, U.S. Nuclear Regulatory Commission, Washington, D.C.

20555, and l

to Charles R. Koche'r, Esq., Southern California Edison Campany, 2244 Walnut j

Grove Avenue, P.O. Box 800, Rosemead, California. 91770 and Orrick, Herrington i

and Sutcliffe, Attention: David R. Pigott, Esq., 600 Montgomery Street, San Francisco, California 94111, attorney for the licensees.

For further details with respect to this action, see (1) the application for amendment dated October 1,1984, and (2) the Commission's Safety Evaluation issued with Amendments 32 and 21 to NPF-10 and NPF-15 dated March 1,1985, which are available for public inspection at the Commission's Public Document Room,1717 H Street, N.W., Washington, D.C., and at the San Clemente. Library, 242 Avenida Del Mar, San Clemente, California. A copy of Item (2) may be obtained upon request addressed to the U.S. Nuclear Regulatory Commission, L'ashington, D.C.

20555, Attention:

Director, Division of Licensino.

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l Dated at Rethesda, Maryland, this 1st day of

March 1985.

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FOR THE NUCLEAR REGULATORY COMMISSION

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l George.Knighton,CNf Licensing Branch No. 3 Division of Licensing a

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