ML101050203

Additional Information Regarding Final Safety Analysis Report, Chapter 7, Instrumentation and Controls Review - Requested Common Q Proprietary Documents

ML101050203
Person / Time
Site:	Watts Bar
Issue date:	04/08/2010
From:	Bajestani M Tennessee Valley Authority
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML101050203 (2)

Text

-- a Withhold from Public Disclosure Under 10 CFR 2.390 Tennessee Valley Authority, Post Office Box 2000, Spring City, TN 37381-2000 April 8, 2010 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop: OWFN P1-35 Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 NRC Docket No. 50-391

Subject:

WATTS BAR NUCLEAR PLANT (WBN) UNIT 2 - ADDITIONAL INFORMATION REGARDING FINAL SAFETY ANALYSIS REPORT (FSAR),

CHAPTER 7, "INSTRUMENTATION AND CONTROLS" REVIEW -

REQUESTED COMMON Q PROPRIETARY DOCUMENTS

Reference:

TVA letter dated March 12, 2010, "Watts Bar Nuclear Plant (WBN) Unit 2 -

Additional Information Regarding Final Safety Analysis Report (FSAR)

Chapter 7, 'Instrumentation and Controls Review"'

The purpose of this letter is to provide documents that TVA committed in the referenced letter to submit by April 9, 2009. Specifically, in response to Question 4, NRC requested TVA to identify the documentation that will be submitted for each un-reviewed digital instrumentation and control system and component and the associated docketing schedule. In response, TVA committed in part to provide proprietary versions of the WBN Unit 2 Post Accident Monitoring System (PAMS) Licensing Technical Report (Document Number WNA-LI-00058-WBT, Revision 0) and the Software Requirements Specification for PAMS (Document Number WNA-SD-00239-WBT, Revision 1).

The Enclosure contains these two documents, as well as their affidavits for withholding.

Additionally, the affidavits for withholding for two of the other three proprietary documents referenced in TVA's response to Question 4 that were provided with the referenced letter are also enclosed. Specifically, enclosed is the affidavit for the following proprietary documents:

System Design Specification (Document Number WNA-DS-01667-WBT, Revision 1) and System Requirements Specification (Document Number WNA-DS-01617-WBT, Revision 1).

Printedon recycledpaper

U.S. Nuclear Regulatory Commission Page 2 April 8, 2010 The enclosed documents contain information proprietary to Westinghouse. TVA requests that the Westinghouse proprietary information be withheld from public disclosure in accordance with 10 CFR § 2.390.

This letter does not contain any commitments. If you have any questions, please contact me at (423) 365-2351.

Sincerely, Masoud jestani Watts a Unit 2 Vice President cc (Enclosure):

U. S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Resident Inspector Unit 2 Watts Bar Nuclear Plant 1260 Nuclear Plant Road Spring City, Tennessee 37381