ML071920340

Request for Additional Information for Deletion of License Condition 2.G.(2) (TAC No. MD5871) (TS-461)

ML071920340
Person / Time
Site:	Browns Ferry
Issue date:	07/16/2007
From:	Brown E A NRC/NRR/ADRO/DORL/LPLII-2
To:	Campbell W R Tennessee Valley Authority
Brown E, NRR/DORL, 415-2315
References
TAC MD5871
Download: ML071920340 (5)

Text

July 16, 2007Mr. William R. CampbellChief Nuclear Officer and Executive Vice President Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

BROWNS FERRY NUCLEAR PLANT, UNIT 1 - REQUEST FOR ADDITIONALINFORMATION FOR DELETION OF LICENSE CONDITION 2.G.(2)

(TAC NO. MD5871)(TS-461)

Dear Mr. Campbell:

By letter dated June 25, 2007, the Tennessee Valley Authority (TVA, the licensee) submitted anamendment request for Browns Ferry Nuclear Plant (BFN), Unit 1, 2 and 3, as supplemented by a letter dated July 3, 2007. Initially, the proposed amendment would change the Unit 1 operating license to delay theperformance of a large transient test at 105-percent original licensed thermal power (OLTP) required by License Condition (LC) 2.G.(2). After discussions between TVA and the U.S. Nuclear Regulatory Commission (NRC), the request was revised on July 3, 2007, to permit the deletion of LC 2.G.(2) without additional testing at 105-percent OLTP. The enclosed Requestfor Additional Information (RAI) is related to this submittal.A response to the enclosed RAI is needed before the NRC staff can complete the review. Thisrequest was discussed with Mr. David Langley of your staff on July 9, 2007, and TVA agreed torespond by July 20, 2007.If you have any questions, please contact me at (301) 415-2315.Sincerely,/RA/Eva A. Brown, Senior Project ManagerPlant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor RegulationDocket No. 50-259

Enclosure:

RAI cc w/enclosure: See next page

ML071920340 NRR-088 OFFICELPL2-2/PMLPL2-2/LADSS/SBWB/BCDSS/SBPB/BCLPL2-2/BC NAMEEBrownBClaytonGCranstonJWermiel for JSegalaBMozafari for TBoyce DATE 07/16 /07 07/ 16 /07 07/13/07 07/16/07 07 / 16 /07 Letter to William R. Campbell from Eva A. Brown dated July 16, 2007

SUBJECT:

BROWNS FERRY NUCLEAR PLANT, UNIT 1 - REQUEST FOR ADDITIONALINFORMATION FOR DELETION OF LICENSE CONDITION 2.G.(2)

(TAC NO. MD5871)(TS-461) DISTRIBUTION:

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JTatum AStubbs SJones MRazzaque REQUEST FOR ADDITIONAL INFORMATIONREMOVAL OF LICENSE CONDITION 2.G.(2)TENNESSEE VALLEY AUTHORITYBROWNS FERRY NUCLEAR PLANT, UNIT 1DOCKET NO. 50-259 1.Identify the acceptance criteria (both primary and secondary) applicable to the generatorload reject and main steam isolation valve (MSIV) closure tests. Explain (using major system component setpoints and time requirements) how the June 23rd MSIV isolation test satisfied the acceptance criteria and how the June 9th transient provides confidence based on modeling that the acceptance criteria would be satisfied for a generator load rejection from 105-percent original licensed thermal power. 2.For the MSIV Closure test at 3456 Megawatt thermal (MWt) [99.9 percent rated currentlicensed thermal power (CLTP)], provide the following information:a)Provide the high pressure coolant inject/reactor core isolation cooling injectionwater temperature;b)Provide an estimate of the fraction of decay heat from the steady state value atthe time of the test, and how that differs from the assumptions in the analysis of record.3.Section 14.5.2.7.1 of the Updated Final Safety Analysis Report (UFSAR) provides theanalysis of an MSIV closure test at 3458 MWt (100 percent CLTP) analysis. From that analysis, provide the peak pressure calculated by ODYN and how much higher it was from the peak pressure during the test.4.Additionally, Section 14.5.2.7 of the UFSAR indicated that the main steam relief valves(MSRVs) should lift momentarily during an MSIV closure. Address why the MSRVs did not lift, given that all 12 were predicted to be opened. Address the affect different initial conditions and operator action had on the observed results when compared to the expected.

William R. Campbell, Jr.BROWNS FERRY NUCLEAR PLANTTennessee Valley Authority cc:Mr. Ashok S. Bhatnagar

Senior Vice President Nuclear Generation Development and Construction Tennessee Valley Authority

6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Preston D. Swafford Senior Vice President Nuclear Support Tennessee Valley Authority

6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Walter M. Justice II Interim Vice President Nuclear Engineering & Technical Services Tennessee Valley Authority

6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801Brian O'Grady, Site Vice PresidentBrowns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609General CounselTennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902Mr. John C. Fornicola, General ManagerNuclear Assurance Tennessee Valley Authority

6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801Mr. Bruce Aukland, Plant ManagerBrowns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609Mr. Masoud Bajestani, Vice PresidentBrowns Ferry Unit 1 Restart Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000Decatur, AL 35609Mr. Robert G. Jones, General Manager Browns Ferry Site Operations Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609Mr. Larry S. MellenBrowns Ferry Unit 1 Project Engineer Division of Reactor Projects, Branch 6 U.S. Nuclear Regulatory Commission 61 Forsyth Street, SW.

Suite 23T85 Atlanta, GA 30303-8931 Ms. Beth A. Wetzel, ManagerCorporate Nuclear Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801Mr. William D. Crouch, ManagerLicensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609Senior Resident InspectorU.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant 10833 Shaw Road

Athens, AL 35611-6970State Health OfficerAlabama Dept. of Public Health RSA Tower - Administration

Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017ChairmanLimestone County Commission 310 West Washington Street

Athens, AL 35611Mr. Robert H. Bryan, Jr., General ManagerLicensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801