ML20196G676

Forwards Amend 105 to License DPR-36 & Safety Evaluation. Amend Changes Tech Specs Re Max Nominal Enrichment of Fuel Allowed to Be Used in Reactor Core for Operating Cycle 11 & Beyond from 3.5 to 3.7% Nominal Weight U-235

ML20196G676
Person / Time
Site:	Maine Yankee
Issue date:	06/23/1988
From:	Stahle C Office of Nuclear Reactor Regulation
To:	Randazza J Maine Yankee
Shared Package
ML19318E104	List: ML20196G676 ML20196G680 ML20196G687 ML20196G693
References
NUDOCS 8807060002
Download: ML20196G676 (5)

Text

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r o . yc0Clouq(o g, g UNITED STATES y >v g NUCLEAR REGULATORY COMMISSION 5, j WASHINGTON, D. C. 20555

• June 23, 1988 Docket No. 50-309 Mr. J. B. Randazza Executive Vice President Maine Yankee Atomic Power Company 83 Edison Drive Augusta, Maine 04336

Dear Mr. Randazza:

The Commission has issued the enclosed Amendment No.105 to Facility Operating License No. DPR-36 for the Maine Yankee (MY) Atomic Power Station. This amendment consists of changes to the Technical Specifications (TS) in response to your application dated March 24, 1988.

This amendment changes the maximum nominal enrichment of the fuel allowed to be used in the reactor core for operating cycle 11 and beyond from 3.5%

nominal weight U-235 to 3.7% nominal weight U-235.

Based upon your application, the staff understands that operation of the reactor with 3.7% nominal weight U-235 will be analyzed in the Cycle 11 Core Performance Analysis Report, scheduled-for submittal in July 1988. This amendment is approved, based on a review of the fuel storage methodology and the licensee's assertion that "preliminary results from an evaluation of the core loading planned for Cycle 11 (including a fresh fuel enrichment of 3.7 weight percent U-235) indicates that all applicable acceptance criteria will be met." Operation of the Maine Yankee reactor with 3.7% nominal weight U-235 fuel is not permitted until the licensee has completed the Cycle 11 Core Performance Analysis Report, and if there are changes in applicable acceptance criteria or in any technical specifications, until the NRC has authorized such changes.

As described in the staff's Safety Evaluation, we have concluded that the 4.13 and 3.72 percent enrichment values for the Phase I and II racks are acceptable limits for MY fuel assembly storage and that therefore acceptable spent fuel storage is available for the 3.7 percent enriched fuel of the proposed "Reactor Core" TS change. It is noted that, with the TS limit at 3.7 percent and presumably therefore no greater than 3.7 fuel avollable, either the Phase I or II racks may be used for fuel storage. However, if in the future greater than 3.73 percent fuel is to be stored, information on the procedures used to assure that the higher enrichment is stored only in Phase I racks should be presented for staff review.

8807060002 DR 880623 ADOCK 0S000309 PDR

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- A copy-of the Safety Evaluation is also enclosed. The notice of issuance has been forwarded tolthe Office of the Federal Register for publication.

Sincerely [

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t Carl Stahle, Project Manager Project ~ Directorate I-3 Division of Reactor Projects I/II

Enclosures:

.1. Amendment No.105 to' DPR-36

2. Safety Evaluation.

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A copy of the Safety Evaluation is also enclosed. The notice of issuance will be included in the Comission's next regular bi-weekly Federal Register notice.

3 Sincerely, Carl Stahle, Projec an'ager Project Director -3 Division of Re r Projects I/II

Enclosures:

1. Amendment No. /to DPR-36

2. Safety Evaluatj6n cc w/ enclosures, See next page P DRP 7 1/II P /DRP-I/II OGC PD#I-3/DRP-1/II MRu V,/ck PSrars RWessman

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Mr. J. B. Randazza Maine Yankee Atomic Power Company Maine Yankee Atomic Power Station cc:

John B. Randazza, President Mr. P. L. Anderson, Project Manager Maine Yankee Atomic Power Company Yankee Atomic Electric Company 83 Edison Drive 1671 Worchester Road Augusta, Maine 04336 Framingham, Massachusetts 07101 Mr. Charles B. Brinkman Mr. G. D. Whittier, Manager Manager - Washington Nuclear Nuclear Engineering and Licensing Operations Maine Yankee Atomic Power Company Cerbustion Engineering, Inc. 83 Edison Drive 7910 Woodmont Avenue Augusta, Maine 04336 Bethesda, Maryland 20814 Mr. J. B. Randazza John A. Ritsher, Esquire Executive Vice President Ropes & Gray Maine Yankee Atomic Power Company 225 Franklin Street 83 Edison Drive Boston, Massachusetts 02110 Augusta, Maine 04336 State Planning Officer Executive Department 169 State Street Augusta, Maine 04330 Dr. E. T. Boulette, Plant Manager Maine Yankee Atomic Power Company P. O. Box 408 Wiscasset, Maine 04578 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, Pennsylvania 19406 First Selectman of Wiscasset Municipal Building U.S. Route 1 Wiscasset, Maine 04578 Mr. Cornelius F. Holden Resident Inspector c/o U.S. Nuclear Regulatory Commission P. O. Box E Wiscasset, Maine 04578

4 DATE June 23, 1988 AMENDMEhT NO.105 TO DPR MAINE YANKEE ATOMIC POWER STATION DISTRIBUTION:

s i NRC PDR Local PDR PRC System PDfI-3 Reading '

M. Rushbrook (5) <

P. Sears (2)

S. Varga '

S. Boger W. Jones D. Hagan T.Barnhart.(4)

E. Jordan C. Miles, PA R. Diggs, LFMB OGC ACRS (10)

B. Grimes cc: Plant Service List H. Richings, SRXB I

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