ML20248H721

Application for Amends to Licenses DPR-77 & DPR-79, Consisting of Tech Spec Change 89-36.Amend Clarifies Actions to Be Taken When Not Possible to Monitor or Confirm Quadrant Power Tilt Ratio

ML20248H721
Person / Time
Site:	Sequoyah
Issue date:	10/05/1989
From:	Michael Ray TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20248H722	List: ML20248H721 ML20248H727
References
NUDOCS 8910120035
Download: ML20248H721 (2)

Text

_ _ _

7

~

.. 1 TENNESSEE VALLEY AUTHORITY CH ATTANOOGA. TENNESSEE 37401 5N 157B Lookout Place 00T 0 51988 TVA-SQN-TS-89-36 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:

In the Matter of ) Docket Nos. 50-327 Tennessee Valley Authority -

) 50-328 SEQUOYAH NUCLEAR PLANT (SQN) - TECHNICAL SPECIFICATION (TS) CHANGE 89-36 In accordance with 10 CFR 50.90, we are enclosing a requested amendment to licenses DPR-77 and DPR-79:to change the TSs of SQN Units 1 and 2. The proposed change is to clarify the actions to be taken when it is not possible to monitor or confirm the quadrant power tilt ratio.

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.

The possibility of multiple interpretations for the actions to be taken when the quadrant power tilt ratio cannot be monitored or confirmed in accordance with Surveillance Requirements (SRs) 4.2.4.1 and 4.2.4.2 was identified to TVA by a resident inspector on July 26, 1989. As part of our commitment in the June 1989 enforcement conference, TVA agreed to promptly and expeditiously address such problems.

Also requested is a change to SR 4.2.4.2 to allow the option to use a full core map using the incore detector system instead of the four pairs of symmetric thimble locations to confirm the normalized symmetric power distribution.

TVA requests that this proposed change be given priority for processing to preclude the potential for unit derating or enforcement action caused by interpretation problems with the timeframes available to correct equipment problems and effect power reductions. TVA has made a good faith effort with respect to the development and implementation of the TSs, as evidenced by the current conformance to the NRC's standard TSs. TVA has also made a good faith effort to promptly address potential interpretation problems raised by interested parties.

8910120035 891005 h PDR ADOCK 05000327 P PDC l An Equal opportunity Employer (

__________________0

L

. U.S. Nuclear Regulatory Commission 00T 051989

'Please direct questions concerning this issue to B. S. Schofield at.

(615) 843-6172.

Very truly yours, TENNESSEE VALLEY AUTHORITY (0\%e M. J. Ray, Manage Licensing Project Management Sworn nd subscr ed b fore me

- this V)- day of m 1989 0/jhh Notary Public jf ,/

My Commission ExpiresN Enclosures cc: Ms. S. C. Black, Assistant Director (Enclosures) for Projects .

TVA Projects Division U.S. Nuclear. Regulatory Commission One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852 Mr. B. A. Wilson, Assistant Director (Enclosures) for Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr.~ Hichael H. Mobley, Director Division of Radiological Health T.E.R.R.A. Building 150 9th Avenue, N Nashville, Tennessee 37203 NRC Resident Inspector (Enclosures)

Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379 American Nuclear Insurers (Enclosures)

Attention: Librarian The Exchange, Suite 245 270 Farmington Avenue Farmington, Connecticut 06032

_ _ _ - _ _ _ - _ _ _ - _ _ _ _ _ _ _ _ - - _ - _ _ _ - _ - _