ML20128P746

Deviation Analysis Rept 234 Re Effect of Change in Soil Parameters on Diesel Generator Bldg Floor Response Spectra. Initially Reported on 850418.Reevaluation by Gilbert/Commonwealth,Inc Will Be Completed by 850531

ML20128P746
Person / Time
Site:	Perry
Issue date:	05/17/1985
From:	Edelman M CLEVELAND ELECTRIC ILLUMINATING CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
(RDC-133(85)), 234, NUDOCS 8506030630
Download: ML20128P746 (2)

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f THE CLEVELAND ELECTR P.O. BOX 5000 - CLEVELAND, OHIO 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLDO. - 55 PUBLICSQUARE Serving The Best Location in the Nation MURRAY R. EDEi. MAN VICE PRESIDENT NUCLEAR May 17, 1985 PY-CEI/OIE-0050 LQ Mr. James G. Keppler Regional Administrator, Region III Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 RE: Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Diesel Generator Building Floor Response Spectra

[RDC 133(85)]

Dear Mr. Keppler:

This letter serves as an interim report pursuant to 10CFR50. 55 (e) on the potential deficiency associated with the evaluation of a change in soil parameters which affected the Diesel Generator Building floor response spectra. Mr. J. McCormick-Barger of your office has notified on April 18, 1985, by Mr. T. A. Boss of the Cleveland Electric Illuminating Company that this problem was being evaluated per Deviation Analysis Report 234.

Description of Deficiency It had been determined that a change in soil parameters caused a fundamental frequency shift, affecting our Diesel Generator Building. Gilbert / Commonwealth, Inc. (G/C), our Architect / Engineer, had evaluated this change for impact on the structural accelerations, but not on the floor response spectra. G/C Inc. filed a 10CFR21 report on this subject on April 2, 1985.

8506030630 850517 PDR ADOCK 05000440. IMAY 201986 S PDR /

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• Mr. Jcm2s G. Kcppler May 17, 1985 PY-CEI/OIE-0050 LQ Completion of Evaluation Gilbert / Commonwealth, Inc. is conducting a re-evaluation of potentially affected piping and equipment. As stated by Mr. W. F. Sailer of Gilbert / Commonwealth, Inc., in his

-April 29, 1985 letter to Mr. J. M. Taylor of the NRC, preliminary evaluations indicate that this item does not constitute a substantial safety hazard.

G/C is scheduled to complete their final documentation by May 31, 1985. We will provide our next report on this subject after receipt of this documentation.

Please call if.there are any questions.

Sincerely, t%td [

Murray R Edelman Vice President Nuclear Group MRE:sab cc: Mr. J. A. Grobe USNRC, Site Office Mr. D. E. Keating USNRC, Site Office Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20555 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C. 20555 Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 E