ML20077D692

Application for Amend to License DPR-77.Amend Revises Steam Generator lo-lo Trip Setpoints Allowed by Upcoming Installation of Modified Steam Generator Level Transmitters

ML20077D692
Person / Time
Site:	Sequoyah
Issue date:	05/24/1991
From:	Wallace E TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20077D699	List: ML20077D692 ML20077D700
References
NUDOCS 9105310123
Download: ML20077D692 (2)

Text

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, ,v w. u MAY 241991 TVA-SQN-TS-91-04 10 CFR 50.90 U.S. Nucicar Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Centlemen:

In the Matter of ) Docket No. 50-327 Tennessee Valley Authority )

SEQUOTAH NUCLEAR PLANT (SQN) - TECHNICAL SPECIFICATION (TS) CHANGE 91--04 In accordance with 10 CFR 50.90, we are enclosing a requested amendment to Licenso DPR-77 to change the TSs of SQN Unit 1. The proposed change revises the steam generator lo-lo trip setpointo allowed by the upcoming installation of modified steam generator level transmitters.

The installation of the modified steam generator icvel trancmitters is scheduled for the Unit 1 Cycic 5 refueling outage. This outage is to begin in early October 1991, and the unit will return to operation in late November or early December 1991. TVA requests approval of this TS change by the staff to support implementation of this change before Unit i restart following the Cycle 5 refueling outage. Because the modification will not occur until the refueling cutage and the cetpoint change of this TS change proposal is in the nonconservativo direction, approval of this request before unit shutdown for refueling would not be appropriate. TVA request a 30-day implementation period from receipt of the approved change to place procedure revisions in effect and distribute the revised TS pages.

The proposed TS change is identified in Enclosure 1. The justification for the proposed TS change is provided in Enclosure 2. A proposed determination of no significant hazards consideration performed pursuant to 10 CFR 50.92 is provided in Enclosure 3.

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2 MAY 241991 U.S. Nuclear !!cgulatory Connicsion Please direct questions concerning this locue to Keith C. Weller at (615) 843-1527.

Very truly yours, TENNESSEE VALLEY AUTHORITY l

W E. C. Wallace, Manager Nuclear Licensing and Regulatory Affairs Sworn tlis to /6{nd subscribed day of Alcm before1991 me A.->b B Notary Public My Comnission Expires )[/f j N 7

Enclosures cc (Enclosures):

America. Nuclear Insurers NRC Resident Inspector Attention: Librarian Sequoyah Nuclear Plant The Exchange, Suite 245 2600 Igou Ferry Road 270 Farmington Avenue Soddy Daisy, Tennessee 37379 Farmington, Connecticut 06032 Ms. S. C. Black, Deputy Director Mr. B. A. Wilson, Project Chief Project Directorate 11-4 U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Region 11 One White Flint, North 101 Marietta Street, NW, Suite 2NO 11555 Rockville Pike Atlanta, Coorgia 30323 Rockville, Maryland 20852 Mr. D. E. LaBarge, Project Manager U.S. Nucicar Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. Michael M. Mobley, Director (w/o Enclosures)

Division of Radiological Health T.E.R.R.A. Building 150 9th Avenue, N Nashville, Tennessee 37203