ML20198H608

Forwards Suppl 1 to Application for Amends 152 & 136 to Licenses NPF-10 & NPF-15,modifying TS 3.5.1 to Extend Completion Time for Single Inoperable Safety Injection Tank from 1 H to 24 H

ML20198H608
Person / Time
Site:	San Onofre
Issue date:	01/09/1998
From:	Nunn D SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20198H613	List: ML20198H608 ML20198H665 ML20198H688
References
NUDOCS 9801130349
Download: ML20198H608 (2)

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January 9, 1998 4 l 2

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.152 and 136, Supplement 1

+ Extension of the Completion Time for Safety Injection Tanks San Onofre Nuclear Generating Station Units 2 and 3

Reference:

CE0G CE NPSD 994 " Joint Applications Report for Safety Injection System Tank A0T/STI Extension," May 1995 Enclosed are Amendment Application Nos.152 and 136, Supplement I to Facility Operating Licenses NPF-10 and NPF-15 for the San Onofre Nuclear Generating Station Units 2 and 3, respectively. These amendment applications consist of Proposed Change Number (PCN)-451,~ Supplement 1.

PCN-451 proposes to modify Technical Specification (TS)' 3.5.1 to extend the Completion Time for a single inoperable Safety Injection Tank (SIT) from 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Additionally, PCN-451 proposes to extend the SIT Completion Time from I hour to 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />s-if a single Sil .scomes inoperable due to malfunctioning water level indication or nitrogen cover pressure indication or both.

. Supplement 1addsanewTS5.5.2.14,"ConfigurationRiskManagemen(Program."

The. purpose of the Configuration Risk Management Program (CRMP) is to ensure that-a proceduralized Probabilistic Risk Assessment-informed. process is in place.that assesses the overall impact of plant maintenance on plant risk.

Implementation of the CRMP will enable appropriate. actions to b,e taken or-decisions to be made to minimize and control risk when performing on-line

-maintenance for Systems,' Structures, and Components with a risk-informed

. Completion Time. Proposed TS 5.5.2.14,uill be applicable to TS 3.5.1 because the Completion Times for TS 3.5.1 have " risk-informed Completion Times." g i

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' deterministic and design basis considerations, and~ plant _ risk, as well 'as

-previous _ generic _ studies and conclusions from the NRC staff in NUREG-1366,

" Improvements to Technical Specifications Surveillance Requirements," and NL' REG-1432. " Standard Technical Specifications Combustion Engineering Plants."

The above refe'rence,-which was submitted to the NRC staff for review and-

_ approval under separate cover, supports this change.

Socthern California Edison (SCE) requests this amenament be issued effective as of its date of issuance, and be-implemented-within 30 days from the-date of issuance. This will provide adequate time for the necessary procedure changes and training on the new Technical Specifications.

SCE~ requests the NRC audit the Configuration Risk Matiagement Program prior to

~ approval and implementation of TS 5.5.2.14.

If you.would like additional information on this Technical Specification change request, please let me know.

Sincerely, '

Q- f-i Enclosures j

.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 H. B. Fields, NRC Project Manager, San Onofre Units 2 and 3 S. Y. Hsu, Department of Health Services, Radiologic Health Branch l-l

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