ML20137S860

Informs That ASME Code Case N-249-4 May Be Used within Limitations Stated in Inquiry & Reply Sections of Code Case. Code Case Use Should Be Documented in Future Amend to FSAR

ML20137S860
Person / Time
Site:	Millstone
Issue date:	09/24/1985
From:	Youngblood B Office of Nuclear Reactor Regulation
To:	Opeka J NORTHEAST NUCLEAR ENERGY CO.
References
NUDOCS 8509300524
Download: ML20137S860 (2)

Text

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s t-Docket No.: 50-423 SEP 2 41985 Mr. John F. Opeka Senior Vice President Nuclear Engineering and Operations Northeast Nuclear Energy Company P. O. Box 270 Hartford, Connecticut 06141-0270

Subject:

Use of'ASME Code Case N-249-4 for Millstone Nuclear i Power Station, Unit 3

Reference:

Letter from W. G. Counsil to B. J. Youngblood; Request for Acceptance of a New Code Case and a Revised Code Case dated June 8, 1984 The NRC staff has completed its review of your request for authorization to use ASME Code Case N-249-4 to permit the use of AISI 4330V modified

low alloy steel as ASTM A-668, Class M at Millstone Nuclear Power Station Unit No. 3, as discussed in Item 1 of the Reference Letter B11216.

Code Case N-249-4, " Additional Material for Subsection NF, Classes 1, 2 and 3 Component Supports Fabricated Without Welding Section III, Division 1" is an acceptable Code Case which is approved as written with no additional requirements other than those specified in the Code Case. The Code Case is expected to be endorsed by the NRC in a future revision of Regulatory Guide 1.85, " Materials Code Case Acceptability ASME Section III, Division 1."

Code Case N-249-4 may, therefore, be used at the Millstone Nuclear Power Station Unit No. 3 within the limitations stated in the " Inquiry" and " Reply" section of the Code Case. Use of the Code Case should be documented in a future Amendment to the FSAR.

Sincerely, pflIGIRAL SIcIs yig B. J. Youngblood, Chief Licensing Branch No. 1 Division of Licensing cc: See next page STRfBUT@N:

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Mr. J. F. Opeka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. 3 CC*

Gerald Garfield, Esq. Ms. Jane Spector Day, Berry & Howard Federal Energy Regulatory Commission City Place 825 N. Capitol Street, NE Hartford, Connecticut 06103-3499 Room 8608C Washington, D.C. 20426 Mr. Maurice R. Scully, Executive Director Connecticut Municipal Electric Energy Cooperative 268 Thomas Road Groton, Connecticut 06340 Robert W. Bishop, Esq.

Corporate Secretary Northeast' Utilities Post Office Box 270 Hartford, Connecticut 06141 Mr. T. Rebelowski Senior Resident Inspector Office U. S. Nuclear Regulatory Commission Millstone III P. O. Box 615 Waterford, Connecticut 06385 Mr. Michael L. Jones, Manager Project Management Department Massachusetts Municipal Wholesale Electric Company Post Office Box 426 h Ludlow, Massachusetts 01056

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Regional Administrator U. S. NRC, Region I i 631 Park Avenue King of Prussia, Pennsylvania 19406 Mr. Karl Abraham Public Affairs Office, Region I U. S. Nuclear Regulatory Commission, King' of Prussia, Pennsylvania 19406

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