ML20129H713
| ML20129H713 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 07/09/1985 |
| From: | Edelman M CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-85, REF-PT21-85-329-000 (RDC-133(85)), PT21-85-329, PT21-85-329-000, PY-CEI-OIE-0068, PY-CEI-OIE-68, NUDOCS 8507190380 | |
| Download: ML20129H713 (2) | |
Text
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J-7 Tile CLEVELAND ELECTRIC ILLUMIN ATING COMP ANY i
P.O. BOX 5000 - CLEVELAND, OHIO 44101 - TELEPHONE (216) 622-9800 - lLLUMINATING BLDG.
- 55 PUBLIC SOUARE Semng The Best Location in the Nation s
MURRAY R. EDELMAN VICE PRESIDENT NUCMAR I
July 9, 1985 s
PY-CEI/OIE-0068 L
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:
The Cleveland Electric Illuminating Company has completed the evaluation of a potential deficiency associated with a change in soil parameters which affected the Diesel Gener-ator Building floor response spectra and has concluded this item is not reportable pursuant to 10CFR50.55(e).
This iter,was originally reported to Mr. J. McCormick-Barger of
'your office on April 18, 1985 and was documented in a report transmitted to your office on May 19, 1985.
This potential deficiency was evaluated per Deviation Analysis Report 234.
The report of a potential deficiency was made because a change in soil parameters had been analyzed for its impact on Diesel Generator Building structural accelerations, but not for its impact on the floor response spectra.
Specifi-cally, the soil parameter change caused the fundamental frequency to shift from approximately 8 cps to 3 cps horizontally and from 14 cps to 10 cps vertically. Gilbert /
Commonwealth, Inc. our Architect / Engineers, filed a 10CPR21 report on this subject on April 2, 1985.
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B507190380 850709 PDR ADOCK 05000440 32/
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Mr. Jcmes G. K ppler July 9, 1985 4'.
PY-CEI/OIE-0068 L
Gilbert / Commonwealth, Inc. conducted an analysis of all safety-related items, and related supports in the Diesel Generator Building.
The results of this analysis indicate that this deficiency, if left uncorrected, would not have resulted in the failure of any safety-relrted systems or components during a design basis seismic event.
The analysis did, however, identify four supports which require modification in order to meet project design f
criteria, although the current design if unchanged, would not have resulted in hardware failure.
The following Engineering Change Notices have been initiated to upgrade the four supports.
18080-44-6073 Rev. C l
18081-44-6074 Rev. B l
18982-44-6075 Rev. E r
18083-44-6076 Rev. B This is the final report on this item.
If you have any questions, please call.
Sincerely, f
h 1
Murray
. 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 Control Branch Washington, D.C.
20555 Records Center, SEE-IN Institute of Nuclear Power Operations 1100 Circle 75 Parkway, Suite 1500 Atlanta, Georgia 30339 L