ML20196G338

Forwards LAR 99-19 for License NPF-86,increasing AOT for Cracs from 30 Days to 60 Days on One Time Basis for Each Train to Facilitate on-line Implementation of Design Enhancements During Current Operating Cycle

ML20196G338
Person / Time
Site:	Seabrook
Issue date:	06/23/1999
From:	Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20196G342	List: ML20196G338 ML20196G353 ML20196G367
References
NYN-99054, NUDOCS 9907010130
Download: ML20196G338 (3)

Text

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North Atlantic Energy Service Corporation P.O. Box 300 Atlaritic seehroet siio3874 (603) 474-9 fat The Northeast Utilities Systern June 23,1999 Docket No. 50-443 NYN-99054 l United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 Seabrook Station License Amendment Request 99-19, "One Time Extension of the Allowable Outage Time of Technical Specification 3.7.6.2 for the Control Room Air Conditioning Subsystem" North Atlantic Energy Service Corporation (North Atlantic) has enclosed herein License Amendment Request (LAR) 99-19. LAR 99-19 is submitted pursuant to the requirements of 10CFR50.90 and 10CFR50 4.

LAR 99-19 proposes a change to Seabrook Station Technical Specification (TS) 3.7.6.2. The proposed change would increase the allowed outage time (AOT) for the Control Room Air Conditioning Subsystem (CRACS) from 30 days to 60 days on a one time basis for each train to facilitate the on-line implementation of design enhancements during the current operating cycle.

North Atlantic requests that LAR 99-19 be reviewed on an expedited basis to support the j implementation of the design enhancements in October 1999.

LAR 99-19 has been reviewed and approved by the Station Operation Review Committee and the Nuclear Safety Audit Review Committee.

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As discussed in LAR Section IV of Enclosure 1, the proposed change does 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 Staff review of LAR 99-19 and issuance of a license amendment by August 31,1999 (see Section V enclosed).

l North Atlantic has determined that LAR 99-19 meets the criteria of 10CFR51.22(c)(9) for a categorical exclusion from the requirements for an Environmental Impact Statement (see Section i

I VI of Enclosure 1).

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U.S. Nuclear Regulatory Commission t NYN-99054 / Page 2 Two sketches outlining thel existing safety-related control room air conditioning system, the non-nuclear safety chilled water system and the proposed safety-related chilled water system are included in Enclosure 2 for your information.

' Should you have any questions regarding this letter, please contact Mr. James M. Peschel, Regulatory Compliance Manager, at (603) 773-7194.

Very truly yours, NORTH ATLANTIC ENERGY SERVICE CORP.

W Ted'C. Feigenbaum M d -

Executive Vice Presi ent and Chief Nuclear Officer cc: H. J. Miller, NRC Regional Administrator J. T. Harrison, NRC Project Manager, Project Directorate 1-3 R. K. Lorson, NRC Senior Resident Inspector Mr. Woodbury P. Fogg, P.E., Director New Hampshire Office of Emergency Management

- State Office Park South 107 Pleasant Street Concord,NH 03301 1

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