ML19209B549

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Responds to 790424,0515,21,22,29 & 0604 Ltrs Reporting Results of Seismic Reanalysis of Reactor Coolant Piping Per IE Bulletin 79-07.Mods Discussed on 790604 Are Required Before Resumption of Operation.Code Verification Needed
ML19209B549
Person / Time
Site: Nine Mile Point, Brunswick  Constellation icon.png
Issue date: 06/07/1979
From: Ippolito T
Office of Nuclear Reactor Regulation
To: Jackie Jones
CAROLINA POWER & LIGHT CO.
Shared Package
ML18136A035 List:
References
NUDOCS 7910100100
Download: ML19209B549 (2)


Text

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NUCLEAR REGULATORY COMMiss!ON W ASHINGTON. D. C. 20555 3

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June 7, 1979 Docket Nos. 50-325 and 50-324 Mr. J. A. Jones Executive Vice President Carolina Power & Light Company 336 Fayetteville Striet Raleigh, North Carolina 27602

Dear Mr. Jones:

This letter is submitted in response to your letters dated April 24, 1979, May 15, May 21 May 22, May 29, 1979 and June 4,1979 which provided docu-mentation of the results of seismic piping stress reanalysis for Brunswick Steam Electric Plant, Units 1 and 2 in connection with IE Bulletin 79-07.

Your submittals were also in response to the staff's requests for information set forth in our meetings of May 16, May 21, May 30,1979 and June 4, 1979.

On the basis that the reanalysis was conducted using computer programs employing acceptable seismic iesponse combination techhiques, and accept-able results were obtained from the reanalyses, we conclude that the recuirements set.forth in IE Bulletin 79-07 will be adequately satisfied to allow resumption of power operation on completion of the modifications identified in our meeting of June 4,1979.

However, as-built verification of all lines and supports and completion of code verifications will be required before your response to IE Bullet'in 79-07 is considered finally complete.

A copy of our evaluation addressin9 this matter is enclosed.

Sincerely, k 7 W f ;.J7. & l L G 4

Thomas

./Ipoclito, Chief Operating Reactors Eranch 43 Divisien of C:erating Reac ors Enciosure:

Evalua-ion

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s Carolina Power & Light Company cc: Richard E. Jones, Escuire Carolina Power & Lignt Company 336 Fayetteville Street Raleigh, North Carolina 27602 George F. Trewbridge, Esquire Shaw, Pittman, Potts & Trowbridge 1800 M Street, NW Washington, D. C. 20036 John J. Burney', Jr., Esquire Burney, Burney, Sperry & Barefoot 110 North Fifth Avenue Wilmington, North Carolina 28201 Southport - Brunswick County Library 109 W. Moore Street Southport, North Carolina 28461 1i31 359 e 9 e}}