ML18136A037

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Safety Evaluation Re Seismic Reanalysis of Reactor Coolant Piping Per IE Bulletin 79-07.Requirements Satisfied
ML18136A037
Person / Time
Site: Nine Mile Point, Surry, Robinson  Constellation icon.png
Issue date: 05/22/1979
From:
Office of Nuclear Reactor Regulation
To:
Shared Package
ML18136A035 List:
References
NUDOCS 7910100059
Download: ML18136A037 (2)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION**

WASl:flN~TON, D.-C. 20555.

MAY 2 2 1979 Docket No. 50-261 Mr. J. A~ Jones Senior Vice President Carolina Power and Light Compariy

. 336 Fayettevi 11 e Street.

. Raleigh, North Carolina 27602

Dear Mr. Jones:

This is in.response to your letters of April 27 and May 21, 1979, wherein you reported the results of a recent seismic reanalysis of the reactor coolant ~iping at H. B. Robinson Unit No~ 2 using ari updated version of the WESTDYN code which uses an absolut~ sum technique.

On the basis that the reanalysis was conducted with both an approved method and icceptable results, we consider this matter resolved, and are closing out this action item. A copy of our safety evaluation addressing this matter is enclosed.

Enclosure:

Safety Eval uatioi1 cc: w/enclosure See next page Sincerely,

. (Xl~

a.

A. *

  • chwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors

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Hr. J. A. Jones Carolina Power and. Light Company.

cc:. G. F: Trowbridge, Esquire Shaw, Pi ttnian, Potts and Trowbridge.

1800.M Street, N.W..

Washington, D. C.

  • 20036

. Hartsville Memorial Library

  • Home and Fifth Avenues
Hartsville, South Carolina 29550 John F. Wolf, Esquire, Chairman 3409 Shepherd Street
  • Chevy Chase, Maryland *20015 Dr. A. Dixon Callihan Union Carbide Corporation P. 0. Box Y Oak Ridge, Tennessee 37830 Dr. Richard F. Cole Atomic Safety.and Licensing Board
u. S. Nuclear Regulatory Commission Washington, D. C.

20555 United States Nuclear Regulatory Corrmission Office of Inspection and Enforcement Region II 101 Marietta Street Suite 3100

.Atlanta, Georgia 30303

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