ML20245D851

Requests Schedule to Implement Alternate Rod Injection/ Reactor Trip Sys Design in Full Compliance W/Atws Rule, within 60 Days

ML20245D851
Person / Time
Site:	Browns Ferry, Brunswick, 05000000
Issue date:	04/19/1989
From:	Black S Office of Nuclear Reactor Regulation
To:	Kingsley O TENNESSEE VALLEY AUTHORITY
Shared Package
ML20245D855	List: ML20245D851 ML20245D878 ML20246Q366
References
TAC-59072, TAC-59073, TAC-59074, NUDOCS 8905010196
Download: ML20245D851 (3)

Text

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j NUCLEAR REGULATORY COMMISSION WASHINGTON, D, C. 20655

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April 19, 1989

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DocketNos.50-29f/260/296 Mr. Oliver D. Kingsley, Jr.

Senior Vice President, Nuclear Power Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

DIVERSITY REQUIREMENT OF ATWS RULE (10 CFR 50.62) FOR BROWNS FERRY, UNITS 1, 2 AND 3 (TAC NOS. 59072/59073/59074)

By letter dated February 21, 1989, the Tennessee Valley Authority (TVA) indicated that it supported the Boiling Water Reactor Owners' Group (BWROG) ./

position that manufacturing / equipment diversity is not reasonable or practical ~

to meet the ATWS diversity requirements for Boiling Water Reactors (BWRs).

The NRC staff met with the BWROG on January 12, 1989 to discuss the diversityf requirements issue for the ATWS rule (10 CFR 50.62). The staff has concluded that there is no valid argument to change the staff's original position that the proposed BWROG supported application lacks the necessary degree of equipment diversity to meet the diversity requirements specified in the ATWS rule. We are providing this position in the attached letters. You are requested to provide a schedule to implement an alternate rod injection / reactor trip system design that is in full compliance with the ATWS rule. We request that you provide this information within sixty days.

This request is covered by Office of Management and Budget Clearance Nwber 3150-0011, which espires December 3h 1989. The estimated average i burden hours is 200 person-hours per owner response, including assessmedt of the new recommendations, searching data sources, gathering and analyzing the data, and preparing the required letter. Send comments regarding this burden estimate or any other aspects of this collection of information, including suggestions for reducing this burden, to the Records and Reports Management Branch, Division of Information Support Services. Office of Information Resources Management 20055; and toythe PaperworkU. S. Nuclear Regulatory Reduction (Commission, Project 3150-0011), Washington, Office of D.C.

Management and Budget, Washington, D.C. 20503.

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Mr. Oliver. D. Kingsley, Jr. -

If. you have any questions, please contact. the NRC Project Manager, Gerald Gears, at 301-492-0767.

Sincerely,

! Original signed by Suzanne Black, Assistant Director for Projects-TVA Projects Division Office of Nuclear Reactor' Regulation

Enclosures:

Letter, A. C. Thadani (NRC) to 1.

D. N. Grace (BWROG), " Diversity Requirement of ATWS Rule " dated 3/17/89 2.

Letter, T. E. Murley)(NRC)

D. N. Grace to (BWROG , " Diversity Requirement of ATWS Rule," dated

'8/8/88

-3. Letter, T. E. Murlsy (NRC) to L. W. Eury (CP&L,, " Diversity Requirement of ATWS Rule," dated 8/8/88-cc w/enclo,ures:

See next page Distribution Docket File T. Daniels NRC PDR' N. harkisohn Local PDR' OGC Projects Reading B. Grimes AOSP Reading E. Jordan D. Crutchfield ACRS(10)

B. D. Liaw GPA/CA E S. Black BFN Rdg. File R. Pierson S. Newberry.

L. Watson A. Thadani W.-S. Little D. Lynch h Simms G. Gears D. Moran 0FC. :NRR:TVA/LA :NRR:TVA/PM :TVA:A /TP TVA:A  :  :  :

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'0FFICIAL RECORD COPY

b Mr. Oliver D. Kingsley, Jr. tc:-

General Counsel Regional Administrator, Region II

. Tennessee Valley. Authority U.S. Nuclear Regulatory Commission 400 West Summit Hill Drive 101 Marietta Street, N.W.

E11 B33 Atlanta, Georgia 30323 Knoxville, Tennessee 37902 Resident Inspector / Browns Ferry NP Mr. R. L. Gridley . U.S. Nuclear Regulatory Commission Tennessee Valley Authority Route 12, Box 637 SN 157B Lookout Place Athens, Alabama 35611 Chattanooga, Tennessee 37402-2801 Mr. O. J. Zeringue Dr. Henry Myers Science Advisor-Tennessee. Valley Authority Connittee on Interior

. Browns Ferry Nuclear Plant and Insular Affairs P.O.-Box 2000 U. S. House of Representatives Decatur, Alabama 35602 Washington, D.C. 20515 Tennessee Valley Authority Mr. P. Carter Rockville Office Tennessee Valley Authority 11921 Rockville Pike Browns. Ferry Nuclear Plant Suite 402 P.O. Box 2000 Rockville, Maryland 20852 Decatur, Alabama 35602 Mr. D. L. Williams Tennessee Valley. Authority 400 West Summit Hill Drive W10 B85 Knoxville, Tennessee 37902 Chairman, Limestone County Commission P.O. Box 188 Athens, Alabama 35611 Claude Earl Fox, M.D.

State Health Officer State Department of Public Health State Office Building Montgomery, Alabama 36130

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