ML20247G542

Submits Results of 1989 Refueling Outage IGSCC Results.Igscc Insp,Overlay Repair & Expanded Category D Insp Sample Satisfactory

ML20247G542
Person / Time
Site:	Millstone
Issue date:	05/22/1989
From:	Boyle M Office of Nuclear Reactor Regulation
To:	Mroczka E NORTHEAST NUCLEAR ENERGY CO.
References
TAC-69029, NUDOCS 8905310006
Download: ML20247G542 (2)

Text

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May 22, 1989-i'

. . . l t Docket No. 50-245 DISTRIBUTION-

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~Mr.'Edwa'rd J. Mroczka'

1. 6mf ~BGrimes NRC & Local..PDRs .ACRS(10)'

Senior Vice President' . Plant File

' Nuclear Engineering and Operations SVarga Northeast Nuclear Energy Company ~ .BBoger P.O.. Box 270- SNorris

Hartford. Connecticut 06141-0270 MBoyle-OGC

Dear Mr. Mroczk'a:

' EJordan 1989 REFUELING OUTAGE IGSCC INSPECTION RESULTS - MILLSTONE

SUBJECT:

.' NUCLEAR POWER STATION, UNIT NO. 1 (TAC N0. 69029) l By letters dated July 27, 1988, and February 3, 1989, NNEC0 submitted the details of-the intergranular stress corrosion cracking (IGSCC) inspection plan

.to be conducted during.the 1989 refueling outage at Millstone Unit 1. By letters dated May 4 and May 17, 1989, NNEC0 submitted the results and

' additional information for the IGSCC inspection. Based on our review.of the submitted information,.the staff concludes that the IGSCC inspection, weld overlay repair _ and expanded Category D_ inspection sample are satisfactory and that Millstone Unit'l can be safely returned to power and operated.in its present configuration throughout Cycle 13.

The~ staff will issue a formal safety evaluation on.the IGSCC inspection and repair results under separate cover. As in the past, we will require that the -

.IGSCC inspection plan for the Reload 13/ Cycle 14 refueling outage be submitted for ourL review and comment at least three months before the start of that refueling outage. It should be noted that our review of your July 27, 1988,

.-submittal with regard to the provisions of Generic Letter 88-01 is still ongoing.and will be addressed in a separate safety evaluation (TAC No.

69145).

Sincerely, Michael L. Boyle, Project Manager Project Directorate I-4 Division of Reactor Projects I/II

,, Office of Nuclear Reactor Regulation cc: See next page

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Mr. Edward J. Mroczka .,

Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. 1-cc:

Gerald Garfield, Esquire R. M..Kacich, Manager Day, Berry and Howard' Generation Facilities Licensing 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 D. O. Nordquist Nuclear,0perations Manager of Quality Assurance

. Northeast Utilities Service Company Northeast Nuclear. Energy Company Post Office Box 270 .

Post Office Box 270-Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270-

~

Kevin McCarthy,~ Director Regional Administrator Radiation Control Unit Region I, .

Department of Environmental Protection U. S. Nuclear Regulatory Comission State Office Building 475 Allendale Road Hartford, Connecticut 06106- King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary First Selectmen Energy Division Town of Waterford Office of Policy and Management Hall of Records 80 Washington Street 200 Boston Post Road Hartford, Connecticut 06106 Waterford, Connecticut 06385 S. E. -Scace, Station Superintendent W. J. Raymond, Pesident 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 811L Waterford, Connecticut 06385 Niantic, Connecticut 06357 J. P. Stetz, Unit Superintendent Millstone Unit No. 1 Northeast Nuclear Energy Company Post Office Box 128 Waterford, Connecticut 06385 L