ML20246N018

Forwards Safety Evaluation Accepting 831107,840827 & 0917 Responses to Generic Ltr 83-28,Item 1.2, Post-Trip Review, Data & Info Capability (Multi-Plant Action B-85)

ML20246N018
Person / Time
Site:	Sequoyah
Issue date:	07/11/1989
From:	Black S Office of Nuclear Reactor Regulation
To:	Kingsley O TENNESSEE VALLEY AUTHORITY
Shared Package
ML20246N023	List: ML20246N018 ML20246N032
References
GL-83-28, TAC-53633, TAC-53634, NUDOCS 8907190280
Download: ML20246N018 (2)

Text

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• <: July 11,1989

. Docket Nos. 50-327 Distribution and 50-328 CDocket y lexa JBrady SQN Rdg.

NRC PDR LWatson WSwenson Local PDR TQuay Mr. Oliver D. Kingsley, Jr. Projects Reading MSimms Senior Vice President, Nuclear Power At'SP Reading JDonohew Tennessee Valley Authority' D(rutchfield OGC l 6N 38A Lookout Place B1Liaw BGrimes 1101 Market Street R)ierson EJordan L Chattanooga, Tennessee 37402-2801 Si' lack ACRS(10) l Bkilson GPA/CA

SUBJECT:

SALEM ATWS ITEM 1.2 (GL 83-28, MPA B-65) (TAC 53633/53634) -

SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 i

l By letter dated July 8, 1983, the NRC staff issued Generic Letter (GL) 83-28,

" Required Actions Based on Generic Implications of Salem ATWS Events." This l GL addressed actions to be taken which assured that a comprehensive program of preventative maintenance and surveillance testing is implemented for reactor trip breakers (RTB). Item 1.2 of GL 83-28, " Post-Trip Review Data And Information Capability," addresses the programs for assuring that licensees have a capability (1) to record, recall or display data and information to permit diagnosing, prior to restart, the causes of unscheduled reactor shut-downs and (2) for ascertaining the proper functioning of safety-related equip.

ment.

In its letter dated August 15, 1985, the staff accepted part of your responses to Item 1.2 of GL 83-28. The staff's evaluation was based on your letters dated November 7, 1983, and August 27 and September 17, 1984. The staff concluded that the performance characteristics of the sequenca-of-events (SOE) recorders and the data output format were acceptable. However, the staff also concluded that the parameters recorded, the performance characteristics of the time history recorders and the data retention capability were not acceptable.

By letters dated May 2, 1986 and December 14, 1987, TVA submitted additional information on Item 1.2 which addressed the staff's concerns in its Safety Evaluation (SE)datedAugust 15, 1985. Enclosed is the staff's SE on all of the

' responses on Item 1.2 for Sequoyah. We conclude that the programs for Sequoyah addressing Item 1.2 of GL 83-28 are acceptable. TVA stated in its letters that 3 these programs have been implemented at Sequoyah.

$ Sincerely, S8 Original si osto Suzanne C. B\ned byack, Assistant Director

" for Projects y TVA Projects Division Office of Nuclear Reactor Regulation gg om p

Enclosure:

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lir. Oliver D. Kingsley, Jr. cc:-

General' Counsel Mr. Kenneth M. Jenison Tennessee Valley Authority Senior Resident Inspector 400 West Summit Hill Drive Sequoyah Nuclear Plant

. ET 11B 33H U.S. Nuclear Regulatory. Commission Knoxville, Tennessee 37902 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379 Mr. F. L. Moreadith Vice President, Nuclear Engineering Mr. Michael H. Mobley, Director Tennessee Valley Authority Division of Radiological Health 400 West Summit Hill Drive T.E.R.R.A. Building, 6th Floor WT 12A 12A 150 9th Avenue North Knoxville, Tennessee 37902 Nashville, Tennessee 37219-5404 Dr. Mark 0. Medford Dr. Henry Myers, Science Advisor Vice President and Nuclear Connittee on Interior Technical Director and Insular Affairs Tennessee Valley Authority U.S. House of Representatives 6N 38A Lookout Place Washington, D.C 20515 Chattanooga, Tennessee 37402-2801 Tenu.ssee Valley Authority Manager, Nuclear Licensing Rockville Office and Regulatory Affairs 11921 Rockville Pike Tennessee Valley Authority Suite 402 SN 157B Lookout Place Rockville, Maryland 20852 Chattanooga, Tennessee 37402-2801 I

Mr. John L. LaPoint Site Director Sequoyah Nuclear Plant Tennessee Valley Authority P. O. Box 2000 Soddy Daisy, Tennessee 37379 Mr. M. Burzynski Acting Site Licensing Manager Sequoyah Nuclear Plant P. O. Box 2000 Soddy Daisy, Tennessee 37379 County Judge Hamilton County Courthouse Chattanooga, Tennessee 37402 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W.

Atlanta, Georgia 30323 6

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