ML20137Y839

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Submits Steam Generator Tube Plugging Info,Per Tech Spec 4.12.E.1.Results of Inservice insp:19 Tubes Plugged, Including 7 Tubes in Steam Generator 21 & 12 Tubes in Steam Generator 22 (1.6% & 3.2%,respectively)
ML20137Y839
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 10/02/1985
From: Musolf D
NORTHERN STATES POWER CO.
To:
Office of Nuclear Reactor Regulation
References
TAC-12657, NUDOCS 8510080101
Download: ML20137Y839 (1)


Text

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M Northem States Power Company 414 Nicollet Mall Minneapohs. Minnesota 55401 Telephone (612) 330-5500 October 2, 1985 Director Office of Nuclear Reactor Regulation U S Nuclear Regulatory Commission Washington, DC 20555 PRAIRIE ISIldD NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 Steam Generator Tubing Plugging In accordance with Technical Specification 4.12.E.1, the following steam generator tube plugging information is provided for the information of the NRC Staff.

Following the recent in_e rvice inspection of the Unit 2 steam generators, nineteen tubes were plugged. Seven tubes were plugged in steam generator 21 and twelve in steam generator 22. The percentage of tubes plugged is 1.6% and 3.2% in steam generators 21 and 22, respectively.

This information will be expanded upon in the Inservice Inspection Report for Unit 2. Also Table 4.3-4 of the Prairie Island Updated Safety Analysis Report will be updated in the next revision.

If you have any questions concerning this information please call.

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David Musolf Manager - Nuclear Suppo Services DMM/EFE/ dab c: Regional Administrator-III, NRC NRR Project Manager, NRC Resident Inspector, NRC flPCA Attn: F W Ferman G Charnoff

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