ML20235Y442

Advises That Development of Integrated Schedule for Prioritization of All Outstanding post-restart Activities Re Cable Tray Support FSAR Commitments Under Consideration. Compliance W/Commitments Re Supports Stated in Encl

ML20235Y442
Person / Time
Site:	Sequoyah
Issue date:	10/15/1987
From:	Gridley R TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8710200362
Download: ML20235Y442 (3)

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TENNESSEE VALLEY AUTHORITY g{ Q$

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i U.S.' Nuclear Regulatory Commission ATTN:

Document Control Desk Washington, D.C.

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Gentlemen:

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In the Matter of

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Docket Nos. 50-327-Tennessee Valley Authority

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50-328 SEQUOYAH NUCLEAR PLANT (SQN) - UNIT 2 - SCHEDULE FOR COMPLIANCE WITH CABLE TRAY SUPPORT FINAL SAFETY ANALYSIS REPORT (FSAR) COMMITMENTS

References:

1.

TVA letter from R. Gridley to B. Youngblood dated August 18, 1986 2,

NRC letter from B. J. Youngblood to S. A. White dated December 5, 1986, " Transmittal of Draft Safety Evaluation on the Interim Acceptance Criteria for Cable Tray Supports" 3.

TVA letter frGa -1.

Gridley to NRC dated October 6, 1987, "Sequoyah Nuclear Plant (SQN) - Unit 2 - Pipe Support l

Modification Restart criteria Meeting Summary" Reference 1 requested NRC approval of cable tray support interim acceptance criteria at SQN.

As discussed in reference 1, "These criteria involve minor deviations to the original FSAR licensing commitments, yet ensure that the system functions required for safe power plant operation and accident mitigation are not compromised.... application of these criteria will serve as the basis for timely restart and operation of Sequoyah units 1 and 2.

Subsequently, full compliance to the original design bases and FSAR commitments will be reestat'lished, in accordance with a defined post-restart j

program schedule."

l Several NRC/TVA meetings and a technical audit, September 29 to l

October 3, 1986, were then conducted to refine and formalize the presented

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criteria. Reference 2 thereupon granted NRC acceptance for the use of this interim criteria at SQN units 1 a nd 2.

TVA has currently assessed and is scheduling the actions required to ensure cable tray supports in category I structures meet long-term FSAR commitments for SQN unit 2.

All safety-related cable tray supports are scheduled to be in compliance with the FSAR commitments by unit 2 fuel cycle 4 outage (as documented in the enclosure).

1 8710200362 G71015 PDR ADOCK 05000327

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An Equal Opportunity Employer

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()Gff 151987 U.S. Nuclear Regulatory Commission However,'as indicated in: reference 3, ".

. TVA is considering the

. development of an integrated schedule for the prioritization of all outstanding Postrestart activities.

This comprehensive schedule may yield revisions to some previously committed schedules, based on postrestart

workloads and assigned priorities of tasks. Upon development of this schedule TVA will meet with NRC to review and discuss."

I If.'any questions or comments exist, please telephone M. R. Harding at I

-(615) 870-6422.

l Very truly yours, TENNESSEE VALLEY AUTHORITY R. Gridley Director Nuclear Licensing and Regulatory Affairs-Enclosure cc (Enclosure):

Mr. G. G. Zech, Assistant Director for, Inspection Programs Office of Special Projects U.S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. J. A. Zwolinski, Assistant Director for Projects Division of TVA Projects Office of Special Projects U.S. Nuclear Regulatory Commission 4350 East-West Highway EWW 322 Bethesda, Maryland 20814 i

Sequoyah Resident Inspector Sequoyah Nuclear Plant 2600 Igou Ferry Road Soddy Daisy, Tennessee 37379 i

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ENCLOSURE:

COMMITMENTS - SQN UNIT 2-COMPLIANCE WITH CABLE TRAY SUPPORT FSAR COMMITMENTS Compliance'to'the long-term Design Criteria for Cable Tray Supports, as defined in the SQN FSAR, will be targeted to be achieved for unit 2.by.

completion of-unit 2' fuel cycle 4.

. Alternatively, TVA is considering the development of an integrated schedule.

for.the prioritization of all outstanding postrestart. activities..This comprehensive. schedule may yield' revisions to some previously' committed schedules, based on postrestart workloads and assigned priorities of: tasks.

Upon development of.this schedule, TVA will meet with NRC to review and discuss.

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