ML19347A556

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Responds to IE Bulletin 79-07, Seismic Stress Analysis of Safety-Related Piping. Unit Was Designed Using Nondynamic Methods of Analysis
ML19347A556
Person / Time
Site: Yankee Rowe
Issue date: 04/24/1979
From: Groce R
YANKEE ATOMIC ELECTRIC CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
WYR-79-50, NUDOCS 7905250452
Download: ML19347A556 (1)


Text

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Y Telephens 617 366-9011 rwx F10-390-0739 YANKEE ATOMIC ELECTRIC COMPANY B.4.2.1 20 Turnpike Road Westborough, Mcssochusetts 01581

,YAN KEE kTR 79-50 Soqc April 24, 1979 United States Nuclear Regulatory Co= mission Region I 621 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Office of Inspection & Enforcement Mr. Boyce H. Grier, Director

References:

(a) License No.' DPR-3 (Docket 50-29)

(b)

I & E letter to YAEC dated April 14, 1979 I & E Bulletin 79-07

Dear Sir:

Subject:

Response to I & E Bu13etin 79-07 The Yankee Nuclear Power Station was designed to the rules of ANSI B31.1-1955 using non-dynamic =etnods of analysis.

The current NRC Systematic Evaluation Progra= is reviewing the

=ethodology of design utilized in the Yankee Nuclear Power Station, k'e trust this infor=ation adequately addresses Reference (b).

Should you require additional information, please contact Mr. J. R.

Hoff=an of this office.

Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY

[4 M Robert H. Groce M

Licensing Engineer JRH/s=w 79052501762,