ML20101B255

Forwards Rev 0 to Turbine Overspeed Protection Maint & Testing Program,Seabrook Unit 1 Nuclear Power Station, Per Util Commitment in 860609 Seabrook Station Turbine Insp Program & Sser 5 (NUREG-0896)

ML20101B255
Person / Time
Site:	Seabrook
Issue date:	05/25/1992
From:	Feigenbaum T PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20101B259	List: ML20101B255 ML20101B260
References
RTR-NUREG-0896, RTR-NUREG-896 NYN-92066, NUDOCS 9206010094
Download: ML20101B255 (3)

Text

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l New Hampshire Yed C. Feigenbovm Yh hh President and Chief Executive Officer NYN; 92066 May 25,1992 United States Nuclear Regulatory Commission WashNgton, D.C. 20555 Attention: Document Control Desk

References:

(a) Facility Operating License No. NPF-86, Docket No. 50 443 (b) NHY Letter dated June 9,1986 "Scabrook Station Turbine Inspection Program' G. S. Thomas to NRC (c) NUREG 0896, Supplement No. 5 " Safety Evaluation Report Related to the Operation of Seabrook Station Units 1 and 2* July 1986

Subject:

Seabrook Station Turbine Overspeed Protection Maintenance and Testing Program Gentlemen:

New Hampshire Yankee has enclosed a copy of the Seabrook Station Turbine Overspeed Protection Maintenance and Testing Program, Revision 0.

New Hampshire Yankee committed to submit this program within three years of obtaining an operating license [ Reference (b)]. The NRC documented this commitment in Supplement No. 5 to the Safety Evaluation Report [ Reference'(c)] as follows:

3.5.1.3 Turbine Missiles .

By letter dated June 9, 1986, the applicant committed te, adoff a turbine maintenance program recommended by the manufacturer based on turbine-missile generation. On the basis of this commitment, the applicant will submit for NRC approval, within 3 years of obtaining an operating license, a turbine system maintenance program.- The contents of this program will be based on  !

the manufacturer's _ calculations of missile generation ' probabilities.

If the applicant is unable to provide the turbine system maintenance program as described above, the staff will require the applicant to volumetrically inspect -i all low-pressure turbine rotors at the second refueling outage, as stated in Section 3.5.1.3 _ of the SER, and every other- (alternate) refueling outage thereafter until-some other maintenance program is approved by the staff.

i l . . ; iW ' O 9206010094 92Cc25 ~

DR ADOCK 05000443

-PDR h\

.New Hampshire Yankee Division of Public Service Company of New Hampshire -

l P.O. Box 300

• Seabrook, NH 03874

• Telephone (603) 474 7521

l United States Nuclear Regulatory Commission May 25,1992 Attention: Document Control Desk Page two The enclosed program document describes the basis for the Turbine Maintenance and..

Testing Program-for Seabrook Station Unit 1. - This program encompasses periodic tests and inspections to preclude generation of turbine missiles as a result of material defects or turbine overspeed. Inspection and testing intervals are based on the Seabrook Station Updated Final Safety Analysis Report (Section 10.2), the Seabrool Station Unit 1 Safet)-

Evaluation Report and the manufacturer's recommendations referenced in the program document.

As New llampshire Yankee acquires more operating exper'e.nce combined with industry experience and technological changes the maintenance program may-be revised. Changes to the program will be reviewed and approved by the Station Manager and the_ Executive Director Nuclear Production. A summary report of inspections aerformed in accorc'ance with thic program will be completed following each refueling outage and will be a_vailable for NRC review. The enclosed turbine maintenance program document completes NilY's commitment to submit its turbine maintenance progrr.m within three years of obtaining- an operating license.

Should you have any questions regarding this letter please contact Mr. James M.

Peschel, Regulatory Compliance Manager, at (603) 474 9521 extension)M2 w Very _ t ly yours, J ?d( s

%W W Ted C. Feigenbwm  ;

Enclosure a TCF: A LL/ss .i i

cc: Mr. Thomas T. Martin Regional Administrator U.S. Nuclear Regulatory Commission Region I  !

475 Allendale Road King of Prussia, PA 19406 Mr. Gordon E. Edison, Sr. Project Manager l Project Directorate 1-3 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555

! Mr.- Noel Dudley NRC Senior Resident Inspector P.O. Box 1149 Seabrook, NH 03874 L -

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New-Hampshire Yankee

" ~ May 25,1992 -

ENCI.OSURE TO NYN 02066 i.

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