ML20217N479
| ML20217N479 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 03/27/1998 |
| From: | Dennis Morey SOUTHERN NUCLEAR OPERATING CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9804090108 | |
| Download: ML20217N479 (3) | |
Text
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Dave Mor y~
Sruthern Nuclear-Vice President Op; rating Company Farley Project RO. Box 1295 Birmingham, Alabama 35201 Tel 205.992.5131 March 27,1998 SOUTHERN COMPANY Docket No.: 50-348 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington,DC 20555 Joseph M. Farley Nuclear Plant - Unit 1 Baffle-Former Bolt Reolacement Ladies and Gentlemen:
This letter is to inform the NRC staff of Southern Nuclear's (SNC) intent to proceed with a Baffle-Former Bolt replacement campaign for Farley Nuclear Plant-Unit 1 in the Fall 1998 outage pending NRC approval of the below listed WCAPs. SNC is a member of the Westinghouse Owners Group (WOG) and has volunteered to serve as a lead Westinghouse plant to address this issue.
' WCAP-14748/14749: " Justification for Increasing Postulated Break Opening Times in e
Westinghouse PWRs" submitted January 1997 WCAP-9735: "Multiflex Version 3.0 A FORTRAN-IV Computer Program for Analyzing Thermal Hydraulic Structural System Dynamics Advanced Beam Model" submitted February 1998 WCAP-15029: " Westinghouse Methodology for Evalesting the Acceptability ofBaflie-e Former-Barrel Bolting Distribution Under Faulted Flood Conditions" submitted Febmary f
1998 WCAP-15042: " Determination of Acceptable Baftle-Barrel-Bolting fcr Three-Loop
- O e
Westinghouse Domestic Plants" to be submitted June 1998 (Note: This WCAP is similar I
to WCAP-15036: " Determination of Acceptable Baffle-Barrel-Bolting for Two-Loop Westinghouse Domestic Plants" which will be submitted early next month and will be
. based on the methodology discussed in WCAP-15029.)
Southern Nuclear requests Staff approval of the above stated WCAPs prior to September 15, 1998, to support the Unit 1 Fall outage scheduled to begin on October 3,1998. SNC recognizes that it is requesting approval of these WCAPs on an expedited basis and that NRC resources may be limited; however, the combination of these WCAPs represent a cost effective approach that is necessary for replacing baffle-former bolts. SNC is taking a proactive approach to this issue; is spending considerable resources to support bolt replacement during the Unit 1 Fall 1998 outage; and must have an acceptable bolt replacement plan prior to performing inspections / replacements. Following NRC approval of an acceptable bolt
- replacement methodology (i.e., the referenced WCAPs), SNC plans to replace the bolts using the 10CFR50.59 process.
980409010s 980327-PDR ADOCK 05000348 P
PDR-w
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- U.S. Nuclear Regulatoiy Commission Page 2 i
Inspection results ofFar'cy 'tJnit I will be extremely beneficial to the nuclear industry and the NRC in addressing this issae. The accumulated neutron fluence and bolting material used at Farley Nuclear Plant will provide a unique opportunity to learn more about the e.fety implications and nature of this potential issue. Should NRC approval of the requested WCAPs not occur prior to September 15,1998, SNC will investigate other options, including deferring our replacement campaign until 2001.
SNC wishes to work with the NRC Staff and the WOG on resolving any barriers to the l
replacement scheduled for this fall. If there are any questions, please advise.
Respectfully submitted,
{
I SOUTHERN NUCLEAR OPERATING COMPANY i
()%[ ')2Vs Dave Morey TAH/ cit:INTENTL_. DOC cc: Mr.L. A.Reyes, RegionII Administrator Mr. J. I. Zimmerman, NRR Project Manager
- Mr. T. M. Ross, Plant Sr. Resident Inspector i
i I
e-g bc:
Mr. J. D. Woodard Mr. R. D. Hill Mr. K. W. McCracken Mr. J. W. McGowan Mr. Jim Bailey Mr. Medi Sheibani Mr. Don Crowe Mr. Steve Tipps NEL Reading File NEL CATLIPS FNP Document Control RTYPE: A4.54 NS File: A-2894.1
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