ML19276G922

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Forwards Final Deficiency Rept Re safety-related Valve/Operator Natural Frequency Analysis
ML19276G922
Person / Time
Site: Catawba  Duke Energy icon.png
Issue date: 08/14/1979
From: Dail L
DUKE POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19276G923 List:
References
NUDOCS 7908280621
Download: ML19276G922 (2)


Text

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August 14, 1979 ,

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c Mr. J. P. O'Reilly U.S. Nuclear Regulatory Comission 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Re: Catawba Nuclear Station Safety Related Valve / Operator Natural Frequency Analysis Deficiency 50.55 (e) Report: IE-77/03-5PS-413/414 Duke File: CN-1412.ll-1

Dear Mr. O'Reilly:

By letter to you dated October 11, 1977, Duke Power forwarded to your office an initial report of the referenced 10CFR 50.55 (e) reportable item. Enclosed with this letter is Duke's final report concerning this item.

Very truly ours,

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L. C. Dail, Vice-President Design Engineering EKM/ cam Attachment b

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August 10, 1979 / ~-

Q.C j. # WU [/ E J. L. Elliott, Principal Engineer ',

Analysis Section ,

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Attn: W. H. Rasin Re: Catawba Nuclear Station 1 - 2 Safety Related Valve / Operator Natural Frequency Analysis Deficiency 50.55(e) Report: IE-77/03-5PS-413/414 Files CN-1205.01 & CN-1205.02 Attached is our recommended final resolution for the subject 50.55(e) report. All seismic reports have been corrected, resubmitted and approved using revised valve natural frequency models.

Duke should submit a final report to close this open item with the NRC.

Please advise if you require any additional information.

S. K. Blackley, Jr., Chief Engineer Mechanical C Nuclear Division r!rd B7: J. K. Berry Senior Engineer

/sf cc: W. O. Henry V. H. Shellhorse K. S. Canady (j (j lti