ML20126C240

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Confirms 800317 Submittal of Computer Code Listings for UE&C-ADLPIPE-2 Main Steam & Safety Relief Valve Discharge Line Seismic Reanalysis.Printouts Update Previously Submitted Listings
ML20126C240
Person / Time
Site: Brunswick  
Issue date: 03/25/1980
From: Utley E
CAROLINA POWER & LIGHT CO.
To: Ippolito T
Office of Nuclear Reactor Regulation
References
NG-3514(B), NUDOCS 8003280561
Download: ML20126C240 (2)


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March 25, 1980 FILE:

NG-3514(B)

SERIAL NO: NO-80-471 Office of Nuclear Reactor Regulation Attention:

Mr. T. A. Ippolito, Chief Operating Reactors Branch No. 3 United States Nuclear Regulatory Commission Washington, D. C.

20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 AND 2 LICENSE NOS DPR-71 AND DPR-62 DOCKET NOS. 50-325 AND 50-324 TRANSMITTAL OF COMPUTER PRINTOUT FOR SEISMIC ANALYSES

Dear Mr. Ippolito:

This letter is to confirm that computer code listings for the UE&C-ADLPIPE-2 seismic reanalysis of main steam and four SRV discharge lines for the Brunswick Steam Electric Plant (BSEP) Unit Nos. 1 and 2 were transmitted under separate cover to Mr. Mark Hartzman of the NRC on March 17, 1980.

This information updates the seismic (OBE) piping stress analysis for the main steam and relief valve piping of Line B, Isometric Sheet Nos. 15, 121, 122, 125, and 237 (these isometrics were also sent to Mr. Hartzman). This infor-mation includes (1) corrected elbow radius referred to as Problem 1, (2) straight piping runs substituted for large radius bends referred to as Problem 2, (3) eccentricity of motor operator on Main Steam Isolation valve No. F022B, and (4) acceptance review of field inspection as-built comments.

These computer printouts update the listings previously provided to the NRC, and they contain 10CFR2.790 proprietary information. The necessary information in this regard is contained in the affidavits attached to CP&L's May 4, 1979 letter, Serial No. GD-79-1192 and executed by Mr. Richard T. Murphy of A. D. Little, Inc. and by Mr. Harry G. Kreider of UE&C.

CP&L requests that these computer listings be determined to be withheld from public disclosure in accordance with 10CFR2.790.

Please contact us if you have any queetions concerning this matter.

Yours very truly, 0g h B

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Mr. James P. O'Reilly, Director NRC I&E Region II 101 Marietta St., Suite 3100 i

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NRC Office of Inspection & Enforcement Director, Division of Reactor Operations Inspection Mr. Mark Hartzman l

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