ML20095B044

Informs of Need to Extend Schedule for Implementation of Generic Ltr 89-10, Safety-Related MOV Testing & Surveillance, for Unit 2 & Clarifies Subj Implementation Schedule for Units 1 & 3

ML20095B044
Person / Time
Site:	Browns Ferry
Issue date:	04/14/1992
From:	Zeringue O TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-89-10, TAC-M75635, TAC-M75636, TAC-M75637, NUDOCS 9204210278
Download: ML20095B044 (3)

Text

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A weses WW A tg Ftst OEcdu@Mecw Amra M APR 141m E U.S. Nuclear Regulatory Commission ATTN: Document Control Jesk Washington,-D.C. 20555 Gentlemen:

In the Matter of .

) Docket Nos. 50-259 l- Tennessee Valley Authority ) 50-260 50-296'

. BROWNS FERRY NUCLEAR PLANT (BFN) - GENERIC LETTER (GL) 89-10,

" SAFETY-RELATED MOTOR-OPERATED VALVE TESTING AND SURVEILLANCE" -

IMPLEMENTATION SCHEDULE (TAC NOS.p75635,g75636, ANDp75637)

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References:

1. TVA letter to NRC dated December 21, 1989, " Browns Ferry

-Nuclear Plant (BFN), Sequoyah Nuclear Plant (SQN), and Watts Bar Nuclear-Plant (WBN)..- Response to Generic l

Letter (GL) _89-10 -; Safety -Related Motor Operated Valve j -(MOV) Testing-and Surveillance"

2. .TVA letter dated July 10, 1991, " Browns Ferry Nuclear Plant (BFN) - Regulatory Framework for the_ Restart of

-Units 1 and 3" -

This; letter is provided to inform NRC of the need to extend the.BFN, Unit 2,= schedule for implementation of GL 89-10. Additionally, clarification is provided regarding the GL 89-10 implementation schedule for Units 1 and-3.

! 'VA committed in Reference 1 to develop and implement a comprehensive motor-operated Lvalve testing and surveillance program for BFN Units 1, 2, and 3 satisfying the intent of GL 89-10 by June 28, 1994. For Unit 2 1 this commitrent was predicated, in part, on a restart schedule that would have provided two refueling outages prior to the completion date.

- However, based on the actual Unit 2 restart date BFN has one refueling outage scheduled prior to the completion date. As a result, TVA is 1 extending the BFN Unit 2' implementation schedule of the GL 89-10 program to 30 days following the end of the Cycle 7 refueling outage. This outage is presently scheduled to ene in December 1994.

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U.S. Nuclear Regulatory Commission

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APR 14 $92 TVA plans to complete approximately 50 percent of the BFN Unit 2 MOV differential pressure (dp) testing during each of the Cycle 6 and 7 g refueling outages. This schedule allows for the controlled implementation of a comprehensive MOV testing program with no impact to ,

the health and safety of the public.

In Reference 2 TVA committed to implement the GL 89-10 program for BFN Units.1 and 3 prior to the restart of each unit. Based on test requirements and system configurations it will be necessary to perform dp testing for some MOVs during the power ascension test program following unit criticality. Consequently, TVA plans to complete the required testing on Units 1 and 3 within 30 days following the completion of the ~

power ascension test pregram.

The enclosure to this letter provides the revised BFN Unit 2 implementation schedule and clarification of the Units 1 and 3 implementation commitments.

If you have any questions, contact R. R. Baron, Manager c# Site Licensing, at (205) 729-7566.

Sincerely,

/

J4n -

0. J. Zeringue Enclosure cc (Enclosure):

NRC Resident Inspector

-Browns Ferry Nuclear Plant Route 12, Box 637 Athens, Alabama 35611 Mr. Thierry M. Ross, Project Manager U.S. Nuclear Regulatory Commission One White Fl!.nt, North

.11555 Rockville Pike Rockville, Maryland 20852

.Mr. B. A. Wilson, Project Chief U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 l

I k_______..________.__________________________________________ . _

ENCLOSURE COMMITMENT

SUMMARY

1. TVA will develop and implement a comprehensive motor-operated valve testing and surveillance program for Browns Ferry Nuclear Plant, Unit 2, satisfying the intent of Generic Letter 89-10 within 30 dcys following completion of the cycle 7 refueling outage.

2. TVA will develop and implement a comprehensive motor-c oerated valve testing and surveillance program for Browns Ferry Nuclear Plant, Unit 3, satisfying the intent of Generic Letter 89-10 within 30 days fvllowing completion of the power ascension test program.

3. TVA will develop and implement a comprehensive motor-operated valve testing and surveillance program for Browns Ferry Nuclear Plant, Unit 1, satisfying the intent of Generic Letter 89-10 within 30 days following completion of the power ascension test program.

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