ML18038A242

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Forwards Application to Amend License NPF-54,reflecting Replacement of MSIVs W/Wye Pattern Globe Valves.Sar Pages Affected by Change & SER Addressing Design,Testing & Operation of New MSIVs Also Encl
ML18038A242
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 03/11/1987
From: Mangan C
NIAGARA MOHAWK POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17055C903 List:
References
(NMP2L-1004), 2781G, NUDOCS 8703180278
Download: ML18038A242 (4)


Text

T NIAGARA O MOHAWK NIAGARAMOHAWKPOWER CORPORATION/301 PLAINFIELDROAD, SYRACUSE, N.Y. 13212/TELEPHONE (315) 474-1511 March ll, 1987 (NMP2L 1004)

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Re: Nine Mile Point Unit 2 Docket No. 50-410 Gentlemen:

As we have discussed with the staff of the Office of Nuclear Reactor Regulation and Adminstration of Region I', Niagara Mohawk Power Corporation has made a decision to replace the pr esent Nine Mile Point Unit 2 main steam isolation valves with wye pattern globe valves similar to those being utilized at other boiling water reactors. In support of this change, en'closed for Nuclear Regulatory Commission review are forty copies of an Application for Amendment to Operating License, Safety Analysis Report pages affected by the change, and a safety evaluation addressing the design, testing and operation of the new wye pattern main steam isolation valves for Unit 2. The safety evaluation concludes that the change involves no undue risk to the health and safety of the public and also involves no significant hazards consideration.

Niagara Mohawk requests your cooperation in expediting Nuclear Regulatory Commission review of this change. You can be assured that we will cooperate with you fully and that Niagara Mohawk representatives will be available to discuss or meet with Nuclear Regulatory Commission Staff representatives at any time to address this matter.

Very truly yours, NIAGARA MOHAWK POWER CORPORATION C. V. Mangan Senior Vice President NLR/pns 2781G Enclosures xc: Regio nal Administrator, Region I Ms. E. G. Adensam, Project Director Mr. W. A. Cook, Resident Inspector Project File (2) 8703180278 870311 PDP, ADDCK 05000410 P PDR,',

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMM I SS I ON In the Matter of ]

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Niagara Mohawk Power Corporation ] Docket No. 50-410

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(Nine Mile Point Unit 2) ]

AFF I DAV I T C. V. Man an , being duly sworn, states that he is Senior Vice President of Niagara Mohawk Power Corporation; that he is authorized on the part of said Corporation to sign and file with the Nuclear Regulatory Commission the documents attached hereto; and that all such documents are true and correct to the best of his knowledge, information and belief.

Subscribed and sworn to before me, a Notary Public in and for the State of New York and County of , this //~ day of 1987.

Notary ublic in and for County, New York My Commission expires:

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