ML13330A132

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Notifies That Date for Submittal of Info Re Design Details for Reactor Coolant Vents & Addl Info for Main Steam Line Piping Integrity Evaluation Will Be Submitted 801101 & 1201,respectively
ML13330A132
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 10/09/1980
From: Baskin K
Southern California Edison Co
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
TAC-44128 NUDOCS 8010150372
Download: ML13330A132 (1)


Text

Southern California Edison Company P. 0.

BOX 800 2244 WALNUT GROVE AVENUE

ROSEMEAD, CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER OF NUCLEAR ENGINEERING, 213) 572-1401 SAFETY, AND LICENSING October 9, 1980 Director, Office of Nuclear Reactor Regulation Attention: D. M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

Subject:

Docket No. 50-206 TMI Lessons Learned Requirements San Onofre Nuclear Generating Station Unit 1 By letter dated May 22, 1980, it was indicated that the NRC staff would be provided by October 1, 1980, with the design details for the reactor coolant system vents which are required as a part of the TMI Category "B" Lessons Learned requirements. In order to submit sufficient information to enable the NRC staff to perform an adequate review, the date for submittal has been deferred to November 1, 1980.

By letter dated June 10, 1980, it was indicated that the NRC staff would be provided, by October 1, 1980, with additional information regarding the Main Steam Line Piping Integrity Evaluation. Specifically, the additional information includes the fatigue crack growth analysis and the effect of a Design Basis Earthquake on the plastic instability analysis. The additional analysis is being performed by Westinghouse and will not be completed until late November, so the date for submittal has been deferred to December 1, 1980.

The above described schedule changes have been previously discussed with members of your staff. If you have any questions or desire additional information, please contact me.

Sincerely, 8010 150 372..