ML20117G790
| ML20117G790 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 08/29/1996 |
| From: | Dennis Morey SOUTHERN NUCLEAR OPERATING CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9609050330 | |
| Download: ML20117G790 (2) | |
Text
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Southern Nucitar Operating Company Post Offica Box 1295 4
Birmingham. Alabama 35201
)
- Telephone (205) 868 5131 I
Southem Nudear Operating Company o.ve mo,ey Vice President Farley Project the Southern electnc System j
August 29, 1996 l
Docket No.: 50-364 10 CFR 50.90 l
U. S. Nuclear Regulatory Commission ATTN: Document Control Desk l
Washington, D. C. 20555 l
I.
Joseph M. Farley Nuclear Plant - Unit 2 Steam Generator Tube Support Plate Voltage-Based Repair Criteria i
l l
Ladies and Gentlemen:
l l
By letter dated August 22,1996, the NRC Staff requested Southern Nuclear commit to the following for the Farley Unit 2 alternate repair criteria:
l "1.
Pending the implementation of an NRC-approved process for updating a l
generic industry database for steam generator tube degradation, provide the l
l NRC with the database intended to be used prior to each refueling outage; and 2.
Use the database that has been used in the prior cycle of Farley Unit 2 as supplemented by all the data obtained from domestic Westinghouse steam
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generators having 7/8-inch diameter tubes that have been pulled and tested since the prior operating cycle."
Southern Nuclear will follow the above requests with the following comments / clarifications:
1.
Southern Nuclear will use the database forwarded to the NRC Staff by Duquesne Light Company letter dated March 27,1996, for the upcoming Farley Unit 2 inspection / evaluation. This database meets the requirements of 1 and 2 above.
2.
Southern Nuclea. will follow the guidance in 2 above; however, the database willinclude the data from tubes that have been pulled and tested up to 2 months prior to the outage. If a new, NRC-approved database is approved after that-time, its use is optional unless use of the old database is a safety concern, e.g.,
the burst or leakage correlations shift significantly in the non-conservative direction. Additionally, this commitment will be superseded when an NRC-approved process for updating the industry database is available.
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9609050330 960829 PDR ADOCK 05000364 P
U. S. Nuclear Regulatory Commission Page 2 If there are any questions, please advise.
Respectfully submitted, SOUTHERN NUCLEAR OPERATING COMPANY l
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Dave Morey Sworn to and subscribed before me this N9 dayaf h r m d 1996 0 nst Ydw w $ 6 Notary Public 8
My Commission Expireb4Y /79 7 0
REM / cit: database. doc cc: Mr. S. D. Ebneter, Region II Administrator Mr. J.1. Zimmerman, NRR Project Manager Mr. T. M. Ross, Plant Sr. Resident Inspector
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Mr. T. A. Reed, NRR - Materials and Chemical Engineering Branch Dr. D. E. Williamson, State Department of Public Health s