ML20046C653

Forwards SE Accepting Proposed Repair as Alternative to Code Repair During Scheduled Outage Beginning 930731

ML20046C653
Person / Time
Site:	Millstone
Issue date:	07/21/1993
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Opeka J CONNECTICUT YANKEE ATOMIC POWER CO., NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML20046C654	List: ML20046C653 ML20046C657
References
TAC-M86285, NUDOCS 9308110303
Download: ML20046C653 (3)

Text

July 21, 1993

.l Docket No. 50-423 DISTRIBUTION:

GHornseth Docket File JStolz Mr. John F. Opeka NRC'& Local PDRs. SNorris Executive Vice President, Nuclear PDI-4 Plant VRooney Connecticut Yankee Atomic Power Company TMurley/FMiraglia 0GC l

Northeast Nuclear Energy Company JPartlow EJordan 3

Post Office Box 270 ERossi GHill Hartford, Connecticut 06141-0270 JLieberman ACRS (10).

SVarga OPA l

Dear Mr. Opeka:

JCalvo 0C/LFDCB VMcCree LDoerflein

SUBJECT:

APPROVAL OF REQUEST TO USE ALTERNATIVE TO ASME CODE SECTION XI (TAC NO. M86285) l J

This letter f., in response to your request to use an alternative to the ASME Boiler and Pressure Vessel Code,Section XI requirements submitted by letter dated April 21, 1993.

j You proposed use of ASME Code Case N-416 for a class 3 service water pipe repair.

The proposed repair is to be performed in accordance with the requirements of the ASME Code Section XI with the exception of deferral of the Code required hydrostatic test. Code Case N-416 allows deferral of a hydrostatic test for ASME class 2 systems. As a compensatory measure, you propose volumetric inspection and an inservice leak test of the repair. A Code hydro test would be performed during a scheduled outage beginning j

July 31, 1993.

l Based on the review summarized in the enclosed Safety Evaluation, the staff concludes that the proposed repair is acceptable as an alternative to a Code repair, for the above-mentioned period, and is authorized under 10 CFR 50.55a(3)(1) and will provide an acceptable level of quality and safety.

Sincerely, Original signed by G. Vissing for John F. Stolz, Director Project Directorate I-4 Division of Reactor Projects - I/II l

Office of Nuclear Reactor Regulation i

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W ASHINGTON, D.C. 20555-0001 July 21, 1993 Docket No. 50-423 Mr. John F. Opeka Executive Vice President, Nuclear Connecticut Yankee Atomic Power Company Northeast Nuclear Energy Company Post Office Box 270 Hartford, Connecticut 06141-0270

SUBJECT:

APPROVAL 0F REQUEST TO USE ALTERNATIVE TO ASME CODE SECTION XI (TAC NO. M86285)

This letter is in response to your request to use an alternative to the ASME Boiler and Pressure Vessel Code,Section XI requirements subm'itted by letter dated April 21, 1993.

You proposed use of ASME Code Case N-416 for a Class 3 service water pipe repair. The proposed repair is to be performed in accordance with the requirements of the ASME Code Section XI with the exception of deferral of the Code required hydrostatic test.

Code Case N-416 allows deferral of a hydrostatic test for ASME Class 2 systems. As a compensatory measure, you propose volumetric inspection and an inservice leak test of the repair. A Code hydro test would be performed during a scheduled outage beginning July 31, 1993.

Based on the review summarized in the enclosed Safety Evaluation, the staff concludes that the proposed repair is acceptable as an alternative to a Code repair, for the above-mentioned period, and is authorized under 10 CFR 50.55a(3)(i) and will provide an acceptable level of quality and safety.

Sincerely,

}

John F. Stolz, Director Project Directorate I-4 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Enclosure:

Safety Evaluation cc w/ enclosure:

See next page

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I Mr. John F. Opeka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit 3 CC:

Gerald Garfield, Esquire R. M. Kacich, Director Day, Berry and Howard Nuclear Licensing l

Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Romberg, Vice President J. P. Stetz, Vice President Nuclear Operations Services Haddam Neck Plant Northeast Utilities Service Company Connecticut Yankoe Atomic Power Company Post Office Box 270 362 Injun Hollow Road Hartford, Connecticut 06141-0270 East Hampton, Connecticut 06424-3099 Kevin McCarthy, Director Regional Administrator Radiation Control Unit Region I Department of Environmental Protection U.S. Nuclear Regulatory Commission 165 Capitol Building 475 Allendale Road' Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 Allan Johanson, Assistant Director First Selectmen Office of Policy and Management Town of Waterford Policy Development and Planning Division Hall of Records 80 Washington Street 200 Boston Post Road Hartford, Connecticut 06106 Waterford, Connecticut 06385 S. E. Scace, Vice President P. D. Swetland, Resident Inspector Millstone Nuclear Power Station Millstone Nuclear Power Station Northeast Nuclear Energy Company c/o U.S. Nuclear Regulatory Commission Post Office Box 128 Post Office Box 513 Waterford, Connecticut 06385 Niantic, Connecticut 06357 F. R. Dacimo, Nuclear Unit Director M. R. Scully, Executive Director Hillstone Unit No. 3 Connecticut Municipal Electric Northeast Nuclear Energy Company Energy Cooperative Post Office Box 128 30 Stott Avenue Waterford, Connecticut 06385 Norwich, Connecticut 06360 Burlington Electric Department David W. Graham c/o Robert E. Fletcher, Esq.

Fuel Supply Planning Manager 271 South Union Street Massachusetts Municipal Wholesale Burlington, Vermont 05402 Electric Company Post Office Box 426 Nicholas S. Reynolds Ludlow, Massachusetts 01056 Winston & Strawn 1400 L Street, NW G. H. Bouchard, Director Washington, DC 20005-35C2 Nuclear Quality Services Northeast Utilities Service Company Post Office Box 270 Hartford, Connecticut 06141-0270