ML20205H415

Informs That Justification for Proposed Implementation Schedule Adequate & That Full Implementation of ATWS Mods for Facility During Third Reload Outage After 840726 (Reload 6) Acceptable

ML20205H415
Person / Time
Site:	Brunswick
Issue date:	03/26/1987
From:	Muller D Office of Nuclear Reactor Regulation
To:	Utley E CAROLINA POWER & LIGHT CO.
References
NUDOCS 8704010048
Download: ML20205H415 (3)

Text

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. March 26, 1987 Docket No. 50-325 Mr. E. E. Utley Senior Executive Vice President Power Supply and Engineering & Construction Carolina Power & Light Company l Post Office Box 1551 l Raleigh, North Carolina 27602

SUBJECT:

ATWS RULE (10 CFR 50.62) IMPLEMENTATION SCHEDULE Re: Brunswick Steam Electric Plant, Unit 1 By letter dated January 7,1987, you provided your proposed schedule for full implementatbr, of the ATWS requirements of 10 CFR 50.62 for Brunswick Steam Electric Plant, Unit 1 (Brunswick 1). You stated that although the standby liquid control system modifications required by the ATWS Rule will be implemented during the ongoing Reload 5 outage, the other requirements will not be implemented until the Reload 6 outage currently scheduled to begin on December 24, 1988. Since this proposed schedule results in full implementation later than the second refueling outage after July 26, 1964, a justification for delay until the third outage (Reload 6 outage) is required by the ATWS Rule.

We have reviewed the justification for the proposed implementation schedule provided in your January 7,1987 letter. In that letter you note that the recirculation pump trip (RPT) design proposed for Brunswick 1 does not meet the exact specifications of either of the alternative designs approved by the October 21, 1986 NRC Safety Evaluation of Topical Report NEDE-31096-P,

" Anticipated Transient Without Scram: Response to ATWS Rule, 10 CFR 50.62."

On December 11, 1986 you learned that additionsl information would be required for NRC staff consideration of the RPT design being proposed at that time for Brunswick 1. Because the Reload 5 outage was scheduled to begin February 13, l 1987, you proposed to delay implementation of the RPT modifications to allow  ;

reconsideration of the design by your staff and further review by the NRC. I Since the alternate rod injection (ARI) system ATHS modification shares common instrumentation sensors with the ATWS RPT modifications, you also propose to implement the ATWS ARI modifications during the Reload 6 outage.  !

I B704010048 870326 PDR ADOCK 05000325 P PDR ,

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4 Based on our review of your January 7,1987 letter and considerations of the added resources and outage delay that would be incurred by implementation during the current outage, we conclude that your justification is adequate, and that full implementation of the ATWS modifications for Brunswick 1 during the -

third reload outage after July 26, 1984 (Reload 6) is acceptable.

Sincerely, eMnd S"

o. It A*

) Daniel R.. Muller, Director

BWR Project Directorate #2 Division of BWR Licensing cc

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Mr. E. E. Utley Brunswick Steam Electric Plant Carolina Power & Light Company Units 1 and 2 cc:

Mr. P. W. Howe Mr. C. R. Dietz Vice President Plant General Manager Brunswick Nuclear Project Brunswick Nuclear Project Box 10429 Box 10429 Southpcrt, North Carolina 28461 Southport, North Carolina 28461 Thomas A. Baxter, Esquire Mr. H. A.: Cole Shaw, Pittman, Potts & Trowbridge Special Deputy Attorney General 2300 N Street, N. W. State of North Carolina Vashington, D. C. 20037 Post Office Box 629 Raleigh, North Carolina 27602 Mr. D. E. Hollar Associate General Counsel Mr. Robert P. Gruber Carolina Power & Light Company Executive Director Post Office Box 1551 Public Staff - NCUC Raleigh, North Carolina 27602 Post Office Box 29620 Raleigh, North Carolina 27626-0620 Mr. Christopher Chappell, Chairman Board of Commissioners Post Office Box 249 Bolivia, North Carolina 28422 Mrs. Chrys Baggett State Clearinghouse Budget and Management 116 West Jones Street Raleigh, North Carolina 27603 Resident Inspector U. S. Nuclear Regulatory Commission Star Route 1 Post Office Box 208 Southport, North Carolina 28461 Hegional Administrator, Region II U. S. Nuclear Regulatory Commission 101 Marietta Street, Suite 2900 Atlanta, Georgia 30303 Mr. Dayne H. Brown, Chief Radiation Protection Branch Division of Facility Services -

N. C. Department of Human Resources 701 Barbour Drive Raleigh, North Carolina 27603-2008

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