ML20217E844

Forwards LAR 98-04 to License NPF-86,changing TS Surveillance Intervals to Accommodate 24-month Fuel Cycle, Per GL 91-04

ML20217E844
Person / Time
Site:	Seabrook
Issue date:	04/22/1998
From:	Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20217E848	List: ML20217E844 ML20217E861 ML20217E887
References
GL-91-04, GL-91-4, NYN-98054, NUDOCS 9804270443
Download: ML20217E844 (2)

Text

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I 1 NOrtli North Atlantic Energy Service Corporation P.O. Box 300

' .p3 Atlantic Seaureet, Nii O3874 H

(603) 474 9521 I

The Northeast Utilities System April 22,1998 Docket No. 50-443 NYN-98054 l

United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Seabrook Station l License Amendment Request 98-04,

" Changes in Technical Specification Surveillance Intervals To Accommodate A 24-Month Fuel Cycle Per Generic Letter 91-04" Submittal No. 3 North Atlantic Energy Service Corporation (North Atlantic) has enclosed herein License Amendment

, Request (LAR) 98-04. LAR 98-04 is submitted pursuant to the requirements of 10CFR50.90 and l

10CFR50.4.

LAR 98-04 is the third submittal in a planned series of License Amendment Requests which propose i changes to the Seabrook Station Technical Speci6 cations to accommodate fuel cycles of up to 24 l months. The proposed changes are associated with surveillance requirements that are currently performed at each 18-month or other specified outage interval. The License Amendment Request has been prepared in accordance with the generic guidance contained in NRC Generic Letter (GL) 91-04,

" Changes in Technical Specification Surveillance Intervals To Accommodate A 24-Month Fuel Cycle." i I

L The technical evaluation of each proposed increase in surveillance interval supports the conclusion that l the effect on plant safety is insigni6 cant. Historical preventative and corrective maintenance records, l refueling surveillance data, and other testing performed on the surveilled components, as well as, a "

' failure mode analysis, validate the conclusions. In addition, the performance of the referenced surveillances at the bounding surveillance interval of 24 months, plus 25% extension (30 months), do not invalidate assumptions in the plant licensing basis.

LAR 98-04 has been reviewed and approved by the Station Operation Review Committee and the Nuclear Safety Audit Review Committee.

As discussed in the enclosed LAR Section IV, the proposed changes do not involve a significant hazard' consideration pursuant to 10CFR50.92. A copy of this letter and the enclosed LAR have been forwarded to the New llampshire State Liaison Officer pursuant to 10CFR50.91(b). North Atlantic requests NRC review of LAR 98-04 and issuance of a license amendment by October 22,1998 (see Section V enclosed).

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U.S. Nuclear Regulatory Commission NYN-98054 / Page 2 North Atlantic has determined that LAR 98-04 meets the criteria of 10CFR51.22(c)(9) and 10CFR51.22(c)(10) for a categorical exclusion from the requirements for an Environmental Impact Staternent (see Section VI enclosed).

Should you have any questions regarding this letter, please contact Mr. Terry L. liarpster, Director of 1.icensing Services, at (603) 773-7765.

Very truly yours, NORTil ATLANTIC ENERGY SERVICE CORP.

V/Q <

fed C. Feigenbau

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Executive Vice resident and Chief Nuclear Officer cc: 11. J. Miller, NRC Regional Administrator Craig W. Smith, NRC Project Manager, Project Directorate 1-3 l

R. K. Lorson, NRC Senior Resident inspector

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Mr. Woodbury P. Fogg, P.E., Director l New llampshire Office of Emergency Management /

State Oflice Park South 107 Pleasant Street Concord, Nil 03301 l

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