ML102360705
| ML102360705 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar  |
| Issue date: | 08/25/2010 |
| From: | Stewart Bailey Watts Bar Special Projects Branch |
| To: | Bhatnagar A Tennessee Valley Authority |
| Bailey S N 301-415-1321 | |
| References | |
| TAC ME2371 | |
| Download: ML102360705 (2) | |
Text
August 25, 2010 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
SUBJECT:
WATTS BAR NUCLEAR PLANT, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING FINAL SAFETY ANALYSIS REPORT RELATED TO INSTRUMENTATION AND CONTROLS (TAC NO. ME2371)
Dear Mr. Bhatnagar:
By letter dated December 14, 2009 (Agencywide Documents Access and Management System Accession No. ML093570464), the Tennessee Valley Authority (TVA) submitted Final Safety Analysis Report (FSAR) Amendment No. 96 for Watts Bar Nuclear Plant (WBN), Unit 2. This update contained changes to a number of sections of the WBN Unit 2 FSAR, including Section 7, Instrumentation and Controls.
The Nuclear Regulatory Commission (NRC) staff is reviewing your submittal and has determined that additional information is required to complete the review. Because the current licensing basis for WBN Unit 1 is the reference basis for the review and licensing of Unit 2, the staff needs to review certain changes and modifications made to WBN Unit 1, pursuant to Section 50.59, Changes, tests, and experiments, of Part 50 to Title 10 of the Code of Federal Regulations (10 CFR 50.59), after issuance of the operating license. In this regard, provide a complete listing and summary description of all significant design changes made to Unit 1 that did not receive prior NRC staff approval under 10 CFR 50.59 affecting the instrumentation and controls systems discussed in FSAR Chapter 7. TVA should also provide (1) a description of the criteria it used to identify the significant changes and (2) a table correlating each 10 CFR 50.59 evaluation to the affected FSAR subsections.
A response is required within 14 days of receipt of this letter. If you should have any questions, please contact me at 301-415-1321.
Sincerely,
/RA/
Stewart N. Bailey, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-391
Enclosure:
Request for Additional Information cc w/encl: Distribution via Listserv
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
SUBJECT:
WATTS BAR NUCLEAR PLANT, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING FINAL SAFETY ANALYSIS REPORT RELATED TO INSTRUMENTATION AND CONTROLS (TAC NO. ME2371)
Dear Mr. Bhatnagar:
By letter dated December 14, 2009 (Agencywide Documents Access and Management System Accession No. ML093570464), the Tennessee Valley Authority (TVA) submitted Final Safety Analysis Report (FSAR) Amendment No. 96 for Watts Bar Nuclear Plant (WBN), Unit 2. This update contained changes to a number of sections of the WBN Unit 2 FSAR, including Section 7, Instrumentation and Controls.
The Nuclear Regulatory Commission (NRC) staff is reviewing your submittal and has determined that additional information is required to complete the review. Because the current licensing basis for WBN Unit 1 is the reference basis for the review and licensing of Unit 2, the staff needs to review certain changes and modifications made to WBN Unit 1, pursuant to Section 50.59, Changes, tests, and experiments, of Part 50 to Title 10 of the Code of Federal Regulations (10 CFR 50.59), after issuance of the operating license. In this regard, provide a complete listing and summary description of all significant design changes made to Unit 1 that did not receive prior NRC staff approval under 10 CFR 50.59 affecting the instrumentation and controls systems discussed in FSAR Chapter 7. TVA should also provide (1) a description of the criteria it used to identify the significant changes and (2) a table correlating each 10 CFR 50.59 evaluation to the affected FSAR subsections.
A response is required within 14 days of receipt of this letter. If you should have any questions, please contact me at 301-415-1321.
Sincerely,
/RA/
Stewart N. Bailey, Senior Project Manager Watts Bar Special Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-391
Enclosure:
Request for Additional Information cc w/encl: Distribution via Listserv DISTRIBUTION:
RidsOgcRp Resource RidsRgn2MailCenter Resource PUBLIC RidsNrrDorlLpwb Resource RidsNrrDeEicb Resource LPWB Reading File RidsNrrLABClayton Resource RidsNrrPMWattsBar2 Resource RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr H. Garg, NRR ADAMS Accession No.ML102360705
- via memo dated July 13, 2010 OFFICE LPWB/PM LPWB/LA EMCB/BC OGC/NLOw/comments LPWB/BC NAME SBailey BClayton WKemper*
AJones SCampbell/LRaghavan for DATE 08/ 25 /10 08 / 24 /10 06/18/2010 08/ 23 /10 08 / 25 /10 OFFICIAL AGENCY RECORD