ML20063D287
| ML20063D287 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/01/1994 |
| From: | Rosenblum R SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20063D290 | List: |
| References | |
| RTR-NUREG-0800, RTR-NUREG-800 NUDOCS 9402080087 | |
| Download: ML20063D287 (2) | |
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Southem Califomia Edison Company 23 PARKER STREET BRVINE, CALWORNIA 92788 RICHARD M ROSENBLUM TELEpMONE February 1, 1994 m....o-U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington D.C.
20555 Gentlemen:
Subject:
Docket Nos. 50-361 and 50-362 Amendment Application Nos. 138 and 122 Use of NUREG-0800 Standard Review Plan Guidance in Evaluating Tornado-Generated Missile Barriers San Onofre Nuclear Generating Station Units 2 and 3
References:
1.
NUREG-0600 Standard Review Plan, 3.5.1.4, Missiles Generated by Natural Phenomena 2.
Letter dated November 24, 1980, from Mr. K. P. Baskin (SCE) to Mr. F.
Miraglia (NRC),
Subject:
Docket Nos. 50-361 and 50-362, San Onofre Nuclear Generating Station Units 2 and 3 3.
Licensee Event Report 2-93-006, Licensing Basis for Units 2 and 3 Auxiliary Feedwater Piping Tornado Missile Barriers Not Fully Met - Voluntary Report Enclosed are Amendment Application Nos. 138 and 122 to Facility Operating Licenses NPF-10 and NPF-15, respectively, for the San Onofre Nuclear Generating Station (SONGS), Units 2 and 3.
The Amendment Applications consist of Proposed Change Number 433 (PCN-433), which is a request to revise the licensing basis as described in the Updated Final Safety Analysis Report (UFSAR) Section 3.5.3, " Barrier Design Procedures."
This change to the licensing basis of SONGS 2&3' incorporates the use of NUREG -
0800, " Standard Review Plan" (SRP) methodology in evaluating tornado-generated 9issile protection barriers.
In particular, a probability based criteria is used to evaluate missile barrier requirements consistent with the NRC's Standard Review Plan Section 3.5.1.4.
Thi" aange to the licensing basis of the plant is a corrective action rest. ting from Voluntary Licensee Event Report 2-93 -006 (Docket No. ' 50-361).
As a result of our continuing Design Basis Documentation work, Edison anticipates that similar situations requiring clarification may be identified in the future.
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" #c If you need additional information on this UFSAR change request, please let me know.
Sincerely,
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e Vice President Enclosure cc:
K. E. Perkins, Jr.,- Acting Regional Administrator, NRC Region -V J. A. Sloan, NRC Senior Resident Inspector, San Onofre Units 2 & 3 M. B. Fields, NRC Project Manager, San Onofre Units 2 and 3-L h
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