ML20137C648

Responds to NRC Re Violations Noted in Insp Repts 50-327/96-11 & 50-328/96-11.Corrective Actions:Design Change Notice Was Issued on 970311

ML20137C648
Person / Time
Site:	Sequoyah
Issue date:	03/14/1997
From:	Adney R TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9703250071
Download: ML20137C648 (3)

Text

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Tennessee Valley Authority, Post Offee Box 2000. Soddy-Daisy. Tennessee 37370-2000 j- R.J. Adney See Vice President Sequoyah Nucker Plant i

March 14,1997 l 1  : ) ) i Gentlemen: i In the Matter of ) Docket Nos. 50-327 -{ Tennessee Valley Authority ) 50-328  ; i SEQUOYAH NUCLEAR PLANT (SQN) - NRC INSPECTION REPORT NOS. 50-327,  ! 328/96-11, REPLY TO NOTICE OF VIOLATION (NOV) 50-327, 328/96-11-04 l This letter revises commitments that TVA made by letter dated December 19,1996, m response i to the subject NOV. As part of the NOV response, TVA committed to complete a calculation by . February 14,1997, that would compare the design pressure and temperature of the individual i components of the diesel generator starting air system to the system design pressure and - i temperature for adequacy. Although the technical work was complete on February 14,1997, the  ! calculation was not issued until February 17,1997. l The NOV response also included a commitment to issue a design change notice by February 14, 1997, to correct drawings to agree with the conclusions of the calculation. At the time the commitment was made, it was thought that performance of the calculation would only result in drawing changes and would not involve physical modifications to the plant. However, some physical changes are necessary as a result of the calculation and those changes have been  ! incorporated into the design change notice. Since physical changes to the facility are necessary, completion of the modification is necessary for TVA to be in full compliance. The design change notice was issued on March 11,1997. The modification will be complete by April 9,1998. The l date for completion of the modification is due primarily to the long lead time necessary to procure  ; t the valves which will be installed. i The enclosure contains the commitments contained within this submittal. l l

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l U,S. Nuclear Regulatoly Commission , Page 2  ; March 14,1997 l .i if you have questions regarding this response, please telephone R. H. Shell at (423) 843-7170. l t Sincerely, Mb- y$ R. J. Adney , c Enclosure l cc (Enclosure): ) Mr. R. W. Hernan, Project Manager  ! Nuclear Regulatory Commission

One White Flint, North 11555 Rockville Pike i Rockville, Maryland 20852-2739 i.

! NRC Resident Inspector ! Sequoyah Nuclear Plant 2600 Igou Ferry Road i Soddy-Daisy, Tennessee 37379-3624 a ! Regional Administrator i U.S. Nuclear Regulatory Commission l Region II

101 Marietta Street, NW, Suite 2900 l Atlanta, Georgia 30323-2711 l

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                       ,                               ENCLOSURE                                   ,

COMMITMENTS

1. The modifications necessary to bring TVA into full compliance will be completed by April 9,1998.

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