ML20006E784
| ML20006E784 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 02/15/1990 |
| From: | Black S Office of Nuclear Reactor Regulation |
| To: | Kingsley O TENNESSEE VALLEY AUTHORITY |
| Shared Package | |
| ML20006E785 | List: |
| References | |
| IEB-88-002, IEB-88-2, TAC-67323, TAC-67324, TAC-R00328, TAC-R00329, TAC-R328, TAC-R329, NUDOCS 9002260350 | |
| Download: ML20006E784 (2) | |
Text
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Docket Nos. 50-327 Distribution
.and;50-328
-r+Nt4th LWatson NRC PDR JBrady Local PDR LA SQN Reading JDonohew ADSP Reading OGC Mr. Oliver D. Kingsley - Jr.
Senior Vice President,' Nuclear Power DCrutchfield-BGrimes
' Tennessee Valley Authority TQuay EJordan 6N 38A Lookout Place-BDLiaw ACRS(10) 1101' Market Street SBlack GPA/CA Chattanooga,? Tennessee 37402-2801 RPierson EMurphy BWilson
Dear Mr. Kingsley:
SUBJECT:
NRC BULLETIN 88-02 ON STEAM GENERATOR TUBES (MPA X802)
(TAC NOS R00328. R00329, 67323 AND 67324) - SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 By letters dated March 1. March 31, July 6 and August 2, 1988; July 5, 1989; and January 24, 1990; you have responded to NRC Bulletin 88-02, " Rapidly
-Propagating Fatique Cracks in Steam Generator Tubes." This bulletin was issued on February 5,1988 and requested you to implement actions specified in the bulletin to minimize the potential at Sequoyah for a steam generator tube rupture caused by a rapidly propagating fatique crack, such as occurred at North Anna Unit 1 on July 15, 1987.
Sequoyah is a plant with Westinghouse steam generators having carbon steel support plates. The March 1 and-August 2,1988 letters provided the basis for the restart of Unit 2 and Unit 1, respectively, in 1988, from their extended outage since 1985.
The staff's evaluation of the responses to the bulletin are contained within-the enclosed Safety Evaluation. We conclude that the actions taken at Sequoyah fully resolve the issues in the bulletin and are acceptable. This conclusion is based on you adopting administrative controls at Sequoyah to ensure that significant changes to the operating parameters of the steam generators are reviewed for changes to the bulletin analyses for the units.-
.This has been discussed with your staff and their decision was to add sufficient information in the Sequoyah Final Safety Analysis Report (FSAR) so that such changes to the steam generators would be identified through the Sequoyah 10 CFR ta%a 50.59 program and properly reviewed. This information would be added in your April 1991 update of the FSAR. This is acceptable to the staff. 'This completes our review of your responses to NRC Bulletin 88-02. This is the
-s NRC Multi-Plant Action Item X802.
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- $8 Sincerely, 00 Original signed by Suzanne Black. Assistant Director for Projects
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General Counsel Mr. Kenneth M. Jenison i
Tennessee Valley Authority Senior Resident Inspector 400 West Summit Hill Drive Sequoyah Nuclear Plant ET llB 33H U.S. Nuclear Regulatory Comission 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 Committee 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 Tennessee Valley Authority
.i Manager, Nuclear Licensing Rockville Office and Regulatory Affairs 11921 Rockville Pike Tennessee Valley Authority Suite 402 5N 157B Lookout Place Rockville, Maryland 20852 l
l Chattanooga, Tennessee 37402-2801 Mr.-Joseph Bynum Acting Site Director Sequoyah Nuclear Plant Tennessee Valley' Authority P. O. Box 2000 l
Soddy Daisy, Tennessee 37379 Mr. Mark J. Burzynski l
Site Licensing Manager Sequoyah Nuclear Plant I
P. O. Box 2000 Soddy Daisy, Tennessee 37379 County Judge Hamilton County Courthouse 1
l.
Chattanooga, Tennessee 37402 Regional Administrator, Region II U.S. Nuclear Regulatory Comission 101 Marietta Street, N.W.
Atlanta, Georgia 30323 u
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