ML061660004
| ML061660004 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/16/2006 |
| From: | Chernoff M Plant Licensing Branch III-2 |
| To: | Singer K Tennessee Valley Authority |
| Chernoff M, NRR/DORL, 415-4041 | |
| References | |
| (TS-453), TAC MC9518, TAC MC9519, TAC MC9520 | |
| Download: ML061660004 (4) | |
Text
June 16, 2006 Mr. Karl E. 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 ADDITIONAL INFORMATION REGARDING INSTRUMENT SETPOINT PROGRAM (TS-453) (TAC NOS. MC9518, MC9519, AND MC9520)
Dear Mr. Singer:
By letter dated January 10, 2006, Tennessee Valley Authority (the licensee) submitted Technical Specification change TS-453, Instrument Setpoint Program.
Based on our review of your submittal, the Nuclear Regulatory Commission (NRC) staff finds that a response to the enclosed request for additional information is needed before we can complete the review. As discussed with Mr. Bill Crouch of your staff, the NRC staff requests a response within 30 days from the date of issuance of this letter.
If you have any questions, please contact me at (301) 415-4041.
Sincerely,
/RA by E. Brown for/
Margaret H. Chernoff, Project Manager Plant Licensing Branch II-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-259, 50-260, and 50-296
Enclosure:
Request for Additional Information cc w/encl: See next page
ML061660004 NRR-088 OFFICE LPL2-2/PM LPL2-2/PM LPL2-2/LA DE/EICB/BC LPL2-2/BC NAME MChernoff EBrown BClayton AHowe MMarshall DATE 6/15/06 16/15/06 6/15/06 6/06/06 6/16/06
Enclosure REQUEST FOR ADDITIONAL INFORMATION INSTRUMENT SETPOINT PROGRAM TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT, UNITS 1, 2 AND 3 DOCKET NOS. 50-259, 50-260, AND 50-296 Concerning Technical Specification Table 3.3.1.1-1, Function 2. Average Power Range Monitors, a. Neutron Flux - High (Setdown) and b. Flow Biased Simulated Thermal Power -
High, please provide:
(a) An overview description of the testing and calibration of the instrumentation that supports these functions. This description should include self-testing and input signal conversion calibration in the digital system. The description should also address all manual testing and calibration. Include schedule constraints and considerations for each test. Show how this testing, including the associated schedule considerations, is accommodated in the setpoint calculations.
(b) The setpoint calculations including Limiting Trip Setpoint value that is the least conservative acceptable target value for the as-left setting, the as-left tolerance (value),
the as-found tolerance (value), and the allowable value; (c) Describe the procedure for operability determination of the instruments, and the schedule upon which the procedure is based and executed.
Mr. Karl W. Singer BROWNS FERRY NUCLEAR PLANT Tennessee Valley Authority cc:
Mr. Ashok S. Bhatnagar, Senior Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Larry S. Bryant, Vice President Nuclear Engineering & Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Brian OGrady, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Robert J. Beecken, Vice President Nuclear Support Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 General Counsel Tennessee Valley Authority ET 11A 400 West Summit Hill Drive Knoxville, TN 37902 Mr. John C. Fornicola, Manager Nuclear Assurance and Licensing Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Mr. Bruce Aukland, Plant Manager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Masoud Bajestani, Vice President Browns Ferry Unit 1 Restart Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Robert G. Jones, General Manager Browns Ferry Site Operations Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Mr. Scott M. Shaeffer Browns 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 Mr. Larry S. Mellen Browns 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 Mr. Glenn W. Morris, Manager Corporate Nuclear Licensing and Industry Affairs Tennessee Valley Authority 4X Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Mr. William D. Crouch, Manager Licensing and Industry Affairs Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 Senior Resident Inspector U.S. Nuclear Regulatory Commission Browns Ferry Nuclear Plant 10833 Shaw Road Athens, AL 35611-6970 State Health Officer Alabama Dept. of Public Health RSA Tower - Administration Suite 1552 P.O. Box 303017 Montgomery, AL 36130-3017 Chairman Limestone County Commission 310 West Washington Street Athens, AL 35611