ML20058K978

Application for Amend to OL Application Consisting of Mods to Sensitized Stainless Steel Components

ML20058K978
Person / Time
Site:	Monticello
Issue date:	05/19/1970
From:	Mcelroy D NORTHERN STATES POWER CO.
To:
Shared Package
ML20058K438	List: ML20058K435 ML20058K978
References
NUDOCS 9105070326
Download: ML20058K978 (4)

Text

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M gu UNITED STATES ATOMIC ENERGY 00144ISSION

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,. NORTHERN STATES POWER COMPANY 4

Monticello Nuclear Generating Plant E-5979 Docket 1. be. o-M3 Egulatory File Cy, l

, AMENDMENT NO. 27 4

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I APPLICATJr: FOR AEC CIASS 10!4b OPERATING LICENSE IDR A UTILIZATION FACILITY 4

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Northern States Power Company, a corporation organized under the laws of the State of Minnesota, applicant for an operating license for the Monticello Nuclear Generating Plant, hereby amends its application by submission of Amendment No. 27 I

t, Amendment No. 27 provides supplemental information relathg a

to modifications to sensitized stainless components described in

• Amendment 26. - 'f 4 ., 1%

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i j This Amendment to the application contains no restricted l j

J or other defense information.

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l Dated May 19, 1970 l

NORTHERN STATES POWER 0016ANY l

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) D. F. McElroy 4

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STATE OF MINNESOTA) e COUNTY OF HENhTPIN)  !

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h D. F. McElroy, being first duly sworn, says that he is the L

l. Vice President-Engineering of Northern States Power Company, a corporation organized and existing under and by virtue of laws of the State of Minnesota, that he executed the foregoing appli-cation for amendment for the purpose therein set forth; that the statements made in said application for amendment are true and correct to the best of his knowledge and belief; that he was authorized to execute said application on behalf of said corpo-ration; and that the seal affixed is the corporate seal of said corporation.

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D. F. McElroy Subscribed and sworn to before me This 19 day of May , 1970 j l

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Robert E. Hessian Notary Public, Hennepin County, Minnesota {

My Commission Expires May 15, 1976 i

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FeTnnafory File Cf ,

MONTICELLO NUCLEAR GENERATING PLANT E-5979 Docket Number 50-263 Amendment No. 27 Technical Information May 19, 1970 Amendment N>. 26, submitted on May 7, describes certain 'l modifications ',o sensitized stainless ca:nponents of the reactor vessel. The safe ends for the recirculation outlet nozzles (NlA & N1B) are being clad on the ID surfaces with stainless .

steel.

Cladding of the OD surfaces of the safe ends was withheld pending a finding that the clad overlay would not interfere with ultrasonic inspection techniques. Laboratory work had now been completed to verify that this OD overlay cladding will not inter-fere with ultrasonic interrogation of the base material.

We, therefore, are proceeding to clad the OD surfaces of the safe ends for the recirculation outlet nozzles. The surface of the overlay will be ground to provide smoothness required to en-hance the ultrasonic examination.

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