ML20247F811

Informs of Number of Tubes Plugged in Each SG Following ISI of SG Tubes Per Unit 1 Operating License,App A,Ts 4.4.5.5a. Toledo Edison Will Provide Complete Results of SG Tubes ISI Prior to 990331

ML20247F811
Person / Time
Site:	Davis Besse
Issue date:	05/11/1998
From:	Jeffery Wood CENTERIOR ENERGY
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
2538, NUDOCS 9805200055
Download: ML20247F811 (1)

Text

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- e t**,. _ n n= Davis-Besse Nuclear Power Station gg@V $501 North State Route 2 m Oak Harbor, Ohio 43449-9760 j

.lohn K. Wood 419-249.?300 Voce President- Nuclear Fat 419-321-8337 Docket Number 50-346 License Number NPF-3

. Serial Number 2538 May 11, 1998 United States Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555-0001

Subject:

Technical Specification 4.4.5.5a Report of Steam Generator Tube Plugging Ladies and Gentlemen:

This letter is submitted in accordance with the requirements of the Davis-Besse Nuclear Power Station (DBNPS) Unit Number 1, Operating License, Appendix A, Technical Specifications.

Technical Specification 4.4.5.5a requires Toledo Edison to report to the Nuclear Regulatory Commission (NRC) the number of tubes plugged in each steam generator (SG) following each inservice inspection of steam generator tubes.

The Eleventh Refueling Outage SG tube inservice inspection was completed on April 27,1998. ,

As a result of the inspection findings 18 tubes were plugged in SG l-1 and 32 tubes were l

plugged in SG l-2. In addition 1 tube was deplugged, pulled and the tubesheets were replugged '

in that region in SG l-2.

Toledo Edison will provide the complete results of the steam generator tube inservice inspection ,

in accordance with Technical Specifications 4.4.5.5b and 6.9.1.5b prior to March 31,1999. This report willinclude: 1) the number and extent of tubes inspected,2) the location and percent of wall-thickness penetration for each indication of an imperfection, and 3) the identification of tubes plugged, sleeved or repair rolled.

Should you have any questions or require additional information, please contact Mr. James L.

Freels, Manager - Regulatory Affairs, at (419) 321-8466.

Ve ly yours,

- t vA,J r

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cc

A. B. Beach, Regional Administration, NRC Region III o\

l l

S. J. Campbell, DB-1 NRC Senior Resident Inspector A. G. Hansen, DB-1 NRC/NRR Project Manager K

Utility Radiological Safety Board 9905200055 990511 7 PDR ADOCK 05000346 '

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