ML13330A153

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Requests Extension Until 810201 to Evaluate Impact of Automating Auxiliary Feedwater Sys on Existing Safety Analysis & Extension Until 810115 to Provide Info Re Main Steam Line Piping Integrity Evaluation
ML13330A153
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 12/05/1980
From: Baskin K
Southern California Edison Co
To: Crutchfield D
Office of Nuclear Reactor Regulation
References
TAC-44652 NUDOCS 8012100527
Download: ML13330A153 (1)


Text

Southern California Edison Company P. 0. Box 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 K. P. BASK411 TELEPHONE 1MANAGER OF NUCLEARAOGINEERINR, (213) 572-1401 SAFEYY, AND LI4SING December 5, 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 NRC Requested Information San Onofre Nuclear Generating Station Unit 1 By letter dated October 6, 1980 it was indicated that the NRC staff would be provided by December 1, 1980 with the results of the analysis of the impact of automating the Auxiliary Feedwater System (AFWS) on the existing safety analysis for San Onofre Unit 1. Since the analytical effort required to develop the necessary information is quite extensive, additional time will be required to complete the evaluation. It is estimated that the information will be submitted by February 1, 1981.

By letter dated October 9, 1980 it was indicated that the NRC staff would be provided by December 1, 1980 with additional information regarding the Main Steam Line Piping Integrity Evaluation. We have been informed by Westinghouse that the evaluation would not be available in time to support the previously indicated date. It is estimated that the information will be submitted by January 15, 1981.

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.

'Very truly yours, 80)12100 57