ML070250025

Request for Schedule Regarding Analysis for Steam Dryers on Extended Power Uprate Amendment Requests (Tac No. MC3812, MC3743 and MC3744) (TS-431 and TS-418)

ML070250025
Person / Time
Site:	Browns Ferry
Issue date:	01/25/2007
From:	Mcginty T Plant Licensing Branch III-2
To:	Singer K Tennessee Valley Authority
Brown Eva, NRR/DORL, 415-2315
References
TAC MC3743, TAC MC3744, TAC MC3812, TS-418, TS-431
Download: ML070250025 (4)

Text

January 25, 2007 Mr. Karl W. Singer Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

BROWNS FERRY NUCLEAR PLANT, UNITS 1, 2, AND 3 REQUEST FOR SCHEDULE REGARDING ANALYSIS FOR STEAM DRYERS ON EXTENDED POWER UPRATE AMENDMENT REQUESTS (TAC NOS. MC3812, MC3743, AND MC3744) (TS-431 AND TS-418)

Dear Mr. Singer:

This letter requests unit specific schedule information regarding the steam dryer stress analysis report in support of the ongoing extended power uprate (EPU) amendment request review. By letters dated June 25 and 28, 2004, Tennessee Valley Authority (TVA) submitted amendment requests for Browns Ferry Nuclear Plant (BFN), Units 1, 2, and 3. The proposed amendments would change the BFN operating licenses to increase the maximum authorized power level by approximately 20 percent above the current maximum authorized power level for Unit 1, and approximately 15 percent for Units 2 and 3.

During a public meeting held on October 10, 2006, TVA presented its plans to address the Nuclear Regulatory Commission (NRC) staffs concerns regarding the structural integrity of the steam dryers. In the October 10, 2006, meeting, and during subsequent informal conversations, TVA indicated that a revised stress analysis report, incorporating an analysis of actual operating data from Unit 2, would be submitted for NRC staff review by November 27, 2006. However, TVA did not submit a revised steam dryer stress report by that date.

In a letter dated December 1, 2006, the NRC staff informed TVA that it would reestablish the review schedule of the proposed EPU amendment requests upon receipt of the schedule for submittal of the revised stress analysis report. Subsequently, on January 17, 2007, TVA indicated that this information for all three units would be submitted the first week in March in order to support the requested NRC approval timeframe of late summer 2007.

It is the NRC staffs understanding that the information gathered from Unit 2 will be applied in support of the Unit 1 EPU application. Your evaluation of the similarity of the reactor vessels, steam systems, and their components, between the units, will need to justify the application of Unit 2 plant data for the Units 1 and 3 steam dryer stress analysis. If the justification is not sufficient, the NRC staff will expect unit-specific data collected at 105 percent of the original licensed thermal power for each of the three BFN units, in order for the NRC staff to complete the review of the EPU license amendment requests.

K. W. Singer Therefore, TVA is requested to provide a schedule for the submittal of the steam dryer analysis and an outline of the revised steam dryer approach which establishes a success path for the EPU operation. The outline should include plans to address the justification of the similarity between the units, the analysis assumptions, and the plans for the development of limiting curves for the startup power ascension. The outline and schedule should be provided by February 2, 2007. If you have any questions, please contact Ms. Eva Brown at 301-415-2315.

Sincerely,

/RA/

Timothy J. McGinty, Deputy Director Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-259, 50-260, and 50-296 cc: See next page

ML070250025 NRR-106 OFFICE LPL2-2/PM LPL2-2/PM LPL2-2/LA DORL/DD NAME EBrown MChernoff BClayton TMcGinty DATE 01/25/07 01/25/07 01/25/07 01/25/07 Mr. Karl W. Singer BROWNS FERRY NUCLEAR PLANT Tennessee Valley Authority cc:

Mr. Ashok S. Bhatnagar, Senior Vice President Mr. Robert G. Jones, General Manager Nuclear Operations Browns Ferry Site Operations Tennessee Valley Authority Browns Ferry Nuclear Plant 6A Lookout Place Tennessee Valley Authority 1101 Market Street P.O. Box 2000 Chattanooga, TN 37402-2801 Decatur, AL 35609 Mr. Larry S. Bryant, Vice President Mr. Larry S. Mellen Nuclear Engineering & Technical Services Browns Ferry Unit 1 Project Engineer Tennessee Valley Authority Division of Reactor Projects, Branch 6 6A Lookout Place U.S. Nuclear Regulatory Commission 1101 Market Street 61 Forsyth Street, SW.

Chattanooga, TN 37402-2801 Suite 23T85 Atlanta, GA 30303-8931 Brian OGrady, Site Vice President Browns Ferry Nuclear Plant Ms. Beth A. Wetzel, Manager Tennessee Valley Authority Corporate Nuclear Licensing P.O. Box 2000 and Industry Affairs Decatur, AL 35609 Tennessee Valley Authority 4X Blue Ridge Mr. Preston D. Swafford, Senior Vice President 1101 Market Street Nuclear Support Chattanooga, TN 37402-2801 Tennessee Valley Authority 6A Lookout Place Mr. William D. Crouch, Manager 1101 Market Street Licensing and Industry Affairs Chattanooga, TN 37402-2801 Browns Ferry Nuclear Plant Tennessee Valley Authority General Counsel P.O. Box 2000 Tennessee Valley Authority Decatur, AL 35609 ET 11A 400 West Summit Hill Drive Senior Resident Inspector Knoxville, TN 37902 U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant Mr. John C. Fornicola, General Manager 10833 Shaw Road Nuclear Assurance Athens, AL 35611-6970 Tennessee Valley Authority 6A Lookout Place State Health Officer 1101 Market Street Alabama Dept. of Public Health Chattanooga, TN 37402-2801 RSA Tower - Administration Suite 1552 Mr. Bruce Aukland, Plant Manager P.O. Box 303017 Browns Ferry Nuclear Plant Montgomery, AL 36130-3017 Tennessee Valley Authority P.O. Box 2000 Chairman Decatur, AL 35609 Limestone County Commission 310 West Washington Street Mr. Masoud Bajestani, Vice President Athens, AL 35611 Browns Ferry Unit 1 Restart Browns Ferry Nuclear Plant Mr. Robert H. Bryan, Jr., General Manager Tennessee Valley Authority Licensing and Industry Affairs P.O. Box 2000 Tennessee Valley Authority Decatur, AL 35609 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801