ML030170376

Request for Additional Information Related to Technical Specification Revision for Browns Ferry Nuclear Plant

ML030170376
Person / Time
Site:	Browns Ferry
Issue date:	01/17/2003
From:	Jabbour K NRC/NRR/DLPM/LPD2
To:	Scalice J Tennessee Valley Authority
Jabbour K, NRR/DLPM, 415-1496
References
TAC MB6811
Download: ML030170376 (4)

Text

January 17, 2003 Mr. J. A. Scalice Chief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION RELATED TO TECHNICAL SPECIFICATION REVISION FOR BROWNS FERRY NUCLEAR PLANT, UNIT 2 (TAC NO. MB6811)

Dear Mr. Scalice:

By letter dated October 25, 2002, as supplemented by letter dated December 20, 2002, Tennessee Valley Authority submitted an application to revise the Technical Specifications (TS) for the Browns Ferry Nuclear Plant, Unit 2. The proposed revision includes a change to the safety limit minimum critical power ratio value in TS 2.1.1.2. The U.S. Nuclear Regulatory Commission staff has reviewed your submittals and finds that a response to the enclosed request for additional information is needed before we can complete the review.

This request was discussed with Mr. D. T. Langley and B. Morris of your staff on January 16, 2003, and it was agreed that a response would be provided within 20 days of receipt of this letter.

If you have any questions, please contact me at (301) 415-1496.

Sincerely,

/RA/

Kahtan N. Jabbour, Senior Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-260

Enclosure:

Request for Additional Information cc w/encl: See next page

ML030170376 OFFICE PM:PDII-2 LA:PDII-2 SRXB/SC SC:PDII-2 NAME KJabbour BClayton RCaruso AHowe L.Olshan.

for H.Berkow DATE 0 1/7/2003 01/17/2003 01/17/2003 01/17/2003 REQUEST FOR ADDITIONAL INFORMATION RELATED TO PROPOSED TECHNICAL SPECIFICATION REVISION TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT, UNIT 2 DOCKET NO. 50-260

1. Please provide the rationale for changing the fuel bundles and the core loading pattern shown in Figure 2 of the submittals dated October 25, 2002, and December 20, 2002. Also, provide the reason for increasing the beginning of cycle shutdown margin, and describe the relationship between core loading design/bundle design and increasing the beginning of cycle shutdown margin.

2. Please provide your justification that the analysis performed for Unit 2, Cycle 13, single loop operation (SLO) as shown in Table 2 of Enclosure 2, which only provides the results of one case at the beginning of the cycle, is sufficient. Also, describe the impact on the safety limit minimum critical power ratio value for SLO due to end-of-cycle penalty of top-peak power shape.

Enclosure

Mr. J. A. Scalice BROWNS FERRY NUCLEAR PLANT Tennessee Valley Authority cc:

Mr. Karl W. Singer, Senior Vice President Mr. Mark J. Burzynski, Manager Nuclear Operations Nuclear Licensing Tennessee Valley Authority Tennessee Valley Authority 6A Lookout Place 4X Blue Ridge 1101 Market Street 1101 Market Street Chattanooga, TN 37402-2801 Chattanooga, TN 37402-2801 Mr. James E. Maddox, Acting Vice President Mr. Timothy E. Abney, Manager Engineering & Technical Services Licensing and Industry Affairs 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. Ashok S. Bhatnagar, Site Vice President Senior Resident Inspector Browns Ferry Nuclear Plant U.S. Nuclear Regulatory Commission Tennessee Valley Authority Browns Ferry Nuclear Plant P.O. Box 2000 P.O. Box 149 Decatur, AL 35609 Athens, AL 35611 General Counsel State Health Officer Tennessee Valley Authority Alabama Dept. of Public Health ET 11A RSA Tower - Administration 400 West Summit Hill Drive Suite 1552 Knoxville, TN 37902 P.O. Box 303017 Montgomery, AL 36130-3017 Mr. Robert J. Adney, General Manager Nuclear Assurance Chairman Tennessee Valley Authority Limestone County Commission 6A Lookout Place 310 West Washington Street 1101 Market Street Athens, AL 35611 Chattanooga, TN 37402-2801 Mr. Robert G. Jones, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609