ML20137L592

Application for Amend to License DPR-54,consisting of Rev 2 to Proposed Amend 122,addressing Minor Editorial Changes to Rev 1 Re once-through Steam Generator Auxiliary Feedwater Header Surveillance Requirements

ML20137L592
Person / Time
Site:	Rancho Seco
Issue date:	11/25/1985
From:	Latham W SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Thompson H Office of Nuclear Reactor Regulation
Shared Package
ML20137L595	List: ML20137L592 ML20137L608
References
RJR-85-554, NUDOCS 8512030488
Download: ML20137L592 (4)

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%SMUD SACRAMENTO MUNICIPAL UTIUTY DISTRICT O 6201 S Street, P.O. Box 15830, Sacramento, CA 95813; (916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA RJR 85-554 I November 25, 1985 DIRECTOR OF NUCLEAR REACTOR REGULATION ATTN: HUGH L. THOMPSON, JR., DIRECTOR DIVISION OF LICENSING V S NUCLEAR REGULATORY COMMISSION -

WASHINGTON, DC 20555 DOCKET NO. 50-312 LICENSE NO. DPR-54 PROPOSED AMENDMENT 122, REVISION 2 In accordance with 10 CFR 50.59, the Sacramento Municipal Utility District hereby proposes to amend its Operating License DPR-54 for Rancho Seco Nuclear Generating Station No. 1. Per the require-ments of 10 CFR 50.92, this Proposed Amendment 122, Revision 2, has been evaluated by a No Significant Hazards consideration in Attachment I.

This proposal addresses minor editorial changes to Revision 1 of Proposed Amendment No. 122.

Attachment II to this submittal is a description of the proposed changes for Amendment No. 122, Revision 2. Pursuant to 10 CFR 50.91 (a) of the regulation, we have provided a copy of this letter, the proposed change in Technical Specifications, and our analyses of significant hazards considerations to Joseph Ward, the designated representative of the State of California.

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H L THOMPSON November 25, 1985 Since this is'a revision to Proposed Amendment No. 122, no additional license fees are required.

If you have any questions concerning this proposal, please contact Mr. Ron W. Colombo at Rancho Seco Nuclear Generating Station.

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. WILLIAM K. LATHAM ACTING GENERAL MANAGER Enclosures 3 Subscribedgdswornto e ore me **"""'"*"""*""""""""*""""'*

this c25 day of , 1985 PATRICIA K. GEISLER h

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• SACluMENTO COUNT) .

• B f/y Commission Dpires February 16, 1988 {

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Notary Public <

I Attachment I Safety Analysis Rancho Seco Technical Specifications have recently undergone many changes in the steam generator area. Amendment No. 66 added surveillance requirements for certain special interest steam generator tubes and visual inspections of the internal aux-iliary feedwater flow distributor, attachment welds and thermal sleeves. Amendment No. 76 revised Technical Specifications governing the inservice inspection of-steam generator tubes to reflect OTSG operational experience. Proposed Amendment No. 122 has further revised 0TSG Technical Specifications by creating 100% inspection require-ments for specific limited areas which are distinguished by unique operating con-ditions and/or physical construction. The proposed addition of these two tables (Tables 4.17-3 and 4.17-4) has necessitated that OTSG Auxiliary Feedwater Header Surveillance Requirements that were added as Table 4.17-3 in Amendment No. 66 be moved to Table 4.17-5. The other proposed change contained in this submittal re-fers to steam generator tubing inservice inspection results that fall into category.

C-3. 10 CFR 50.72 requires a four-hour report whenever a principal safety barrier has been found seriously degraded. Category C-3 is considered to be such a con-dition. This statement has been added to Section 4.17 to make this requirement more visible.

No Significant Hazards Considerations This revision to Proposed Amendment No. 122 contains minor changes that are editorial in nature. One change entails moving 0TSG Auxiliary Feedwater Header Surveillance requirements to another table. The other change calls out specific requirements of 10 CFR 50.72 in Section 4.17 of Technical Specifications. Therefore, operation of Rancho Seco in accordance with this Proposed Amendment:

1) does not involve a significant increase in the probability or consequences of an accident previously evaluated,

2) does not create the possibility of a new or different kind of l accident from any accident previously evaluated, and

3) does not involve a significant reduction in a margin of safety.

Therefore, significant safety hazards are not associated with this Proposed Amend-ment.

Attachment II Description of Proposed Changes

1) Page ix, List of Tables, Table 4.17-5; OTSG Auxiliary Feedwater Header Surveil-lance Requirements have been moved from Table 4.17-3.

2) Page 4-55,-Specification 4.17-5c; Category C-3 steam generator inspection results require notification of the Commission within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and shall be reported pur-suant to Specification 6.9.5P.

3) Page 4-55a, Fourth Paragraph of the Bases; Category C-3 steam generator inspect-tion reporting requirements have been revised.

4) Page 4.-57, Table 4.17-2A; Category C-3 steam generator inspection reporting re-quirements have been revised.

5) Page 4.57a, Table 4.17-28; Category C-3 steam generator inspection reporting re-quirements have been revised.

6) Pages 4.579 and 4-57h, Table 4.17-5; OTSG Auxiliary Feedwater Header Surveil-lance information was formerly contained in Table 4.17-3.

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