ML20080H960
| ML20080H960 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 02/06/1995 |
| From: | Rehn D DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9502240226 | |
| Download: ML20080H960 (3) | |
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(803)8313D6 fat DUKE POWER February 6,1995 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555
Subject:
Catawba Nuclear Station, Unit 1 Docket No. 50413 Technical Specification Amendment Supplement Renewal Of Steam Generator Tube Interim Plugging Criteria for Unit 1 Cycle 9 Reference Letter from D. L. Rehn to NRC, same subject, dated November 29,1994 As a result of recent telephone discussions between Duke Power Company and the NRC, Catawba is committing to the following items relative to the referenced Technical Specification Amendment Request:
1.
Catawba will perform a tube pull in the event of a forced outage on Unit I during Cycle 9, if the forced outage is due to a S/G Tube leak as a result of ODSCC at the Tube Support Plate. Catawba will pull the leaking intersection and will pull additional intersections as engineedngjudgtnent dictates.
2.
The IPC Repair criteria is not applicable at the Flow Distribution Baffle Plate intersections.
3.
All known tube leaks will be repaired.
4.
Analysts will be briefed on the possibility that Pdmary Water Stress Corrosion Cracking (PWSCC) can occur at the Tube Support Plate intersections. If PWSCC is identified at the Tube Support Plates, this will be reported to the NRC prior to restart of the Unit.
Should you have any questions, please call Devereux Tower at 803-831-3419.
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Nuclear Regulatory Commission February 6,1995 Page 2 Pursuant to 10 CFR 50.91 (b)(1), the appropriate South Carolina official is being provided a copy of this amendment request supplement.
Very truly yours, D. L. Rehn Attachments DT/
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Nuclear Regulatory Commission
. ' November 14,1994 Page 3 xc: Mr. S. D. Ebneter Regional Administrator, RegionII U. S. Nuclear Regulatory Commission 101 Marietta Street, NW, Suite 2900 Atlanta,GA 30323 Mr. Max Batavia, Chief Bureau ofRadiological Health South Carolina Department ofHealth &
Environmental Control 2600 Bull Street Columbia, SC 29201 Mr. R. J. Freudenberger NRC Resident Inspector Catawba Nuclear Station Mr. Robert E. Martin, Project Manager ONRR Mr. Ashok C. Thadni, Associate Director Inspection & Technical Assessment ONRR American NuclearInsurers c/o Dottie Sherman, ANI Libraiy The Exchange, Suite 245 270 Farmington Avenue Farmington, CT 06032 M & M Nuclear Consultants 1166 Avenue ofthe Americas New York, NY 10036-2774 INPO Records Center Suite 1500 1100 Circle 75 Parkway Atlanta, Georgia 30339
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