ML20116A991

Interim Deficiency Rept Re Crosby Main Steam Safety Valve Ring Settings.Initially Reported on 841221.Procedures Being Developed for Tests to Be Conducted in Near Future

ML20116A991
Person / Time
Site:	Seabrook
Issue date:	04/08/1985
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
SBN-788, NUDOCS 8504240661
Download: ML20116A991 (2)

Text

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SEABROOK STATION MI Engineering Office Pub 5c Service of New Hampshko Now Hampshire Yankee Division SBN- 788 T.F. Q2.2.2 United States Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 Attention: Mr. Richard W. Starostecki, Director Division of Project and Resident Programs

References:

(a) Construc tion Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) Telecon of December 21, 1984, A. L. Legendre, Jr. (YAEC) to J. Grant (Region I)

(c) NHY letter SBN-751, dated January 17, 1985, J. DeVincentis to R. W. Starostecki, NRC Region I

Subject:

Interim 10CFR50.55(e) Report, " Main Steam Safety Valve Ring Setting Deficiency"

Dear Sir:

We previously reported in References (b) and (c) a potential 10CFR50.55(e) item to Region I regarding a possible deficiency in Crosby Main Steam Safety Valve ring settings. We are now in the process of developing test procedures, and will conduct the tests in the near future. We expect the tests to indicate the safety significance of the valve disc travel distance on our FSAR accident analysis assumptions. We will report to you the test results when we have completed our program.

Very truly yours, J. DeVincentis, Direc tor g Engineering and Licensing cc: Atomic Safety and Licensing Board Service List Director, Of fice of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 8504240661 850408 PDR ADOCK 05000443 S PDR I O P.O. Box 300 Seabrook,NHO3874 + Telephone (603)474-9521 IE Ulj

e ,o William S. Jordan, III Donald E. Chick Diane Curran Town Manager Harrion, Weiss & Jordan Town of Exeter '

20001 S. Street, N.W. 10 Front Street Suite 430 Exeter, NH 03833 Washington, D.C. 20009 Brentwood Board of Selectmen Robert G. Perlis RED Dalton Road Office of the Executive Legal Director Brentwood, NH 03833 U.S. Nuclear Regulatory Commission Washington, DC 20555 Richard E. Sullivan, Mayor City Hall Robert A. Backus, Esquire Newburyport, MA 01950 116 Lowell Street P.O. Box 516 Calvin A. Canney Manchester, NH 03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street Assistant Attorney General Portsmouth, NH 03801 Augusta, ME 04333 Dana Bisbee, Esquire Mr. John B. Tanzer Assistant Attorney General Designated Representative of Office of the Attorney General the Town of Hampton 208 State House Annex 5 Morningside Drive Concord, NH 03301 Hampton, NH 03842 Anne Verge, Chairperson Roberta C. Pevear Board of Selectmen Designated Representative of Town Hall the Town of Hampton Falls South Hampton, NH 03842 Drinkwater Road Hampton Falls, NH 03844 Patrick J. McKeon Selectmen's Office Mrs. Sandra Gavutis 10 Central Road Designated Representative of Rye, NH 03870 the Town of Kensington RFD 1 Carole F. Kagan, Esquire East Kingston, NH 03827 Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Jo Ann Shotwell, Esquire Washington, DC 20555 Assistant Attorney General Environmental Protection Bureau Mr. Angi Machiros Department of the Attorney General Chairman of the Board of Selectmen One Ashburton Place, 19th Floor Town of Newbury Boston, MA 02108 Newbury, MA 01950 Senator Gordon J. Humphrey Town Manager's Office U.S. Senate Town Hall - Friend Street Washington, DC 20510 Amesbury, MA 01913 (ATTN: Tom Burack)

Senator Gordon J. Humphrey Diana P. Randall 1 Pillsbury Street 70 Collins Street Concord, NH 03301 Seabrook, NH 03874 (ATTN: Herb Boynton) j