ML13322B098

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Advises of Intent to Submit Addl Info Re Unit 1 Tornado Mods,Per Conversation W/Cm Trammel,Per SEP Topics III-2 & III-4.A.Analyses Demonstrating That Tornado Mods Not Required Will Be Provided for Review & Approval by 900430
ML13322B098
Person / Time
Site: San Onofre 
Issue date: 02/21/1990
From: Nandy F
Southern California Edison Co
To:
NRC/IRM
References
TASK-03-02, TASK-03-04.A, TASK-3-2, TASK-3-4.A, TASK-RR NUDOCS 9002270465
Download: ML13322B098 (1)


Text

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Southern California Edison Company 23 PARKER STREET IRVINE, CALIFORNIA 92718 F. R. NANDY TELEPHONE MANAGER OF NUCLEAR LICENSING February 21, 1990 (714) 587-5400 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C.

20555 Gentlemen:

Subject:

Docket No. 50-206 SEP Topics:

111-2, Wind and Tornado Loadings III-4.A, Tornado Missiles San Onofre Nuclear Generating Station Unit 1 As a result of a conversation with Mr. Charles M. Trammel, Project Directorate V, USNRC, the purpose of this letter is to formally advise you that we plan to submit additional information regarding the San Onofre Unit 1 tornado modifications. The preliminary scope of these modifications was originally identified in our October 10, 1986 submittal wherein we indicated that these modifications would be scheduled in accordance with the SONGS 1 Integrated Living Schedule.

However, we recently indicated in our October 2, 1989 letter, that SCE considered this issue to be of low safety significance and that it is our intention to perform analyses which demonstrate that the tornado modifications are not required at San Onofre Unit 1 and to obtain NRC agreement. We currently plan to submit the analyses for NRC review and approval by approximately April 30, 1990.

If you have any questions regarding this matter, please let me know.

Very truly yours, cc: J. B. Martin, Regional Administrator, NRC Region V C. Caldwell, NRC Senior Resident Inspector, San Onofre Units 1, 2 and 3 900227046.5 900221 PDR ADOCK 05000206.

P PDC