ML20128A494

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Forwards Application for Amends to Licenses DPR-42 & DPR-60, Requesting Tech Spec Change to Authorize Use of Steam Generator Sleeves for Repair of Defective Steam Generator Tubes.Fee Paid
ML20128A494
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 05/17/1985
From: Musolf D
NORTHERN STATES POWER CO.
To:
Office of Nuclear Reactor Regulation
Shared Package
ML20128A500 List:
References
TAC-57847, TAC-57848, NUDOCS 8505240241
Download: ML20128A494 (2)


Text

l M Northem States Power Company 414 Nicollet Mal.

Minneapons. Minnesota 55401 Telephone (612) 330 5500 May 17, 1985 Director Office of Nuclear Reactor Regulation U S Huclear Regulatory Commission Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 License Amendment Request dated May 17, 1985 Authorization To Sleeve Steam Generator Tubes e, Attached are three originals and 37 conformed copies of a request for change to Technical Specifications, Appendix A, of Operating Licenses c.

DPR-42 and DPR-60. In accordance with 10 CFR Part 170, a check in the amo' int of $150.00 is enclosed.

The purpose of this License Amendment Request is to obtain authorization to use steam generator ~ sleeves for repair of defective steam generator tubes. The Technical Specifications now require that all defective tubes be plugged. Sleeving has been demonstrated to be a safe and effective method of repair for certain types of defects. Use of sleeve repairs will reduce the number of steem generator tubes that must be plugged and removed from service.

Changes to the steam generator tube inservice inspection reporting requirements are also included with this License Amendment Request. The existing reporting requirements are being modified to reflect the actual reporting practice, which is more restrictive than the present Technical Specification requirements.

Exhibit A describes the proposed changes, provides the reasons for the changes, and provides the supporting significant hazards evaluation.

Exhibit B contains the revised Technical Specification pages. Exhibits C, D, and E are non-proprietary reports prepared by the Westinghouse Electric Corporation and Combustion Engineering, Incorporated, describing the: sleeving repair processes which will be used.

Proprietary versions of Exhibits C, D, and E will be submitted separately for NRC Staff review.

D QOl 8505240 PDR AD g $$8hh 02 PDR h'

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Dir, NRR May 17, 1985 Page 2 Northem States Power Company Please contact us if you have any questions concerning this License Amend-ment Request. NRC Staff review and approval of these changes are requested prior to August 31, 1985. This would allow the use of sleeving repair during the Unit No. I refueling outage beginning in January, 1986 in the event that significant tube sheet area degradation is encountered during eddy current examination.

D d M. s David Musolf g Manager - Nuclear Support Services DMM/ dab c: Regional Administrator-III, NRC NRR Project Manager, NRC Resident Inspector, NRC MPCA Attn: J W Ferman G Charnoff i Attachment

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