ML20151T638

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Forwards Applications for Amends to Licenses NPF-10 & NPF-15,revising TS 3.4.10 by Increasing as-found Psv Setpoint Tolerances.Proposed Pages of UFSAR Chapter 15,encl
ML20151T638
Person / Time
Site: San Onofre  Southern California Edison icon.png
Issue date: 09/04/1998
From: Nunn D
SOUTHERN CALIFORNIA EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20151T642 List:
References
NUDOCS 9809100094
Download: ML20151T638 (2)


Text

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EDISON

%I 50U1HERN CAUTORNIA Dwight E. Nunn An El hTERNATIOML" Company September 4, 1998 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. 180 and 166 Pressurizer Safety Valve Setpoints San Onofre Nuclear Generating Station Units 2 and 3

Reference:

December 19, 1997 letter from Dwight E. Nunn (SCE) to Document Control Desk (NRC),

Subject:

Docket Nos. 50-361 and 50-362, Amendment Application Nos. 172 and 158, San Onofre Nuclear Generating Station Units 2 and 3 Enclosed are Amendment Application Nos.180 and 166 to Facility Operating Licenses NPF-10 and NPF-15, respectively, for the San Onofre Nuclear Generating Station (SONGS); Units 2 and 3, respectively.

These amendment applications consist of Proposed Change Number 493 (PCN-493).

PCN-493 is a request to revise Technical Specification 3.4.10, " Pressurizer Safety Valves," Limiting Condition for Operation (LCO) Pressurizer Safety Valve (PSV) by increasing the as found PSV setpoint tolerances.

The associated Technical Specification Bases changes are included for information only.

PCN-493 is contingent upon NRC approval of PCN-470 (reference).

Additionally, the results of reanalysis of the affected Updated Final Safety

)

Analysis Report-(UFSAR) Chapter 15 safety analyses events are also provided for information only in the form of proposed UFSAR Chapter 15 changes, Approval of this Technical Specification change is requested by February 1, l

1999 for use during the upcoming Cycle 10 refueling outages.

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9809100094 9eo904 PDR ADOCK 05000361 P

pg P. O. Llox 128 San Clemente. CA 92674-0128 949-368-1480 Fax 949-368-1490

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Document Control Desk If you need additional information regarding this proposed Technical Specification change or have any questions, please let me know.

Sincerely,

)

Enclosures l

cc:

E. W. Merschoff, Regional Administrator, NRC Region IV J. A. Sloan, NRC Senior Resident Inspector, San Dnofre Units 2 & 3 J. W. Clifford, NRC Project Manager, San Onofre Units 2 and 3 S. Y. Hsu, Department of Health Services, Radiologic Health Branch 4