ML20137V210
| ML20137V210 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/15/1997 |
| From: | Nunn D SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20137V216 | List: |
| References | |
| NUDOCS 9704170239 | |
| Download: ML20137V210 (2) | |
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EDISON An EDISON INTERNATIONAL Company l
U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C.
20555 Gentlemen:
Subject:
Docket Nos. 50-361 and 50-362 Proposed Technical Specification Change Number 483 San Onofre Nuclear Generating Station i
Units 2 and 3 l
References:
(1)
Letter, J. L. Rainsberry to U.S. Nuclear Regulatory Commission. Document Control Desk,
Subject:
" Diesel i
Generator Testing, San Onofre Nuclear Generating Station, Units 2 and 3,"
dated March 21, 1997 (2)
NUREG-1432, " Standard Technical Specifications, Combustion Engineering Plants (CE0G STS)", September,1992 Enclosed are Amendment Application Numbers 167 and 153 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 Technical Specification Change Number NPF-10/15-483 (PCN-483).
The proposed change is requested to revise Surveillance Requirement (SR) 3.8.1.8 and applicable Bases to Technical Specification (TS) 3.8.1, "AC Sources - Operating." This change will allow Edison to credit overlap testing for performance of SR 3.8.1.8.
Overlap testing provides an equally valid test of the capability of the alternate offsite power source.
As mentioned in Reference 1 and prior correspondence on this issue, the change is based on a re-review of our implementation of Technical Specification Implementation Program (TSIP).
Southern California Edison Company requests this amendment be issued on an exigent basis effective as of its date of issuance.
Issuance of this change on an exigent basis will permit the Unit 3 Unit Auxiliary Transformer to be l
credited as the alternate offsite power source for Unit 2, without either i
performing an actual transfer of the safety related buses while Unit 2 is j
operating or declaring the Unit 2 alternate offsite power source inoperable.
l 9704170239 970415 PDR ADOCK 05000361 Ae i p
PDR l', O. Ik3x 128 San Clemente, CA 92674 0128 llN,h5 714 368 1480 fax 714-3681490
Docunent Control Desk l This in turn will permit necessary preventive maintenance on the Unit 3 Reserve Auxiliary Transformers and associated hardware which is required during the current Unit 3 refueling outage.
If you would like additional information regarding this Amendment Application, please let me know.
Sincerely, m-E@
/
t Enclosure cc:
E. W. Merschoff, Regional Administrator, NRC Region IV K. E. Perkins, Jr., Director, Walnut Creek Field Office, NRC Region IV J. A. Sloan, NRC Senior Resident Inspector, San Onofre Units 2 & 3 M. B. Fields, NRC Project Manager, San Onofre Units 2 and 3
.