ML20079H445

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Submits Design Mod MG-1108 Which Adds One Mechanical Snubber & Deletes One Hydraulic Snubber in Steam Generator Blowdown Sys.Rev to Tech Spec 3.7.8 Will Be Submitted W/License Amend Request
ML20079H445
Person / Time
Site: McGuire Duke Energy icon.png
Issue date: 01/13/1984
From: Tucker H
DUKE POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8401230440
Download: ML20079H445 (1)


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Duxe Powen GOMPANY P.O. Box 33180 CHARLOTTE, N.C. 28242 HALB. TUCKER TELEPHONE vsca re.rminent (704) 373-4531 January 13, 1984

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Mr. James P. O'Reilly, Regional Administrator U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303 Re: McGuire Nuclear Station Docket Nos. 50-369, 50-370

Dear Mr. O'Reilly:

This letter is a Special Report submitted as required by McGuire Nuclear Station Technical Specification 3.7.8.

Duke Power Company has a design change planned which modifies the total number of mechanical snubbers identified in the Technical Specifications.

A description of the planned change follows.

Modification No. MG-1108 (Unit 1)

This modification adds one mechanical snubber and deletes one hydraulic snubber in the Steam Generator Blowdown (BB) System. A reanalysis of the affected piping showed that the stresses are within acceptable values with the above changes.

A revision to Technical Specification 3.7.8 to reflect the above modification will be submitted with the next license amendment request.

Please advise if there are any questions regard 1ng this matter.

Very truly yours, WY Hal B. Tucker CAC/php cc:

Mr. Harold R. Denton, Director Mr. W. T. Orders Office of Nuclear Reactor Regulation NRC Resident Inspector U. S. Nuclear Regulatory Commission McGuire Nuclear Station Washington, D. C. 20555 Attention:

Ms. E. G. Adensam, Chief Licensing Branch No. 4 8401230440 840113 PDR ADOCK 05000369 PDR

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