ML20050A515

Tech Spec Changes to Figures 3.1-2a & 3.1-3a of Cycle 3 Reload Rept BAW-1707 (Figures 8-5 & 8-10 of Rept).Safety Evaluation Encl

ML20050A515
Person / Time
Site:	Davis Besse
Issue date:	03/23/1982
From:	TOLEDO EDISON CO.
To:
Shared Package
ML20050A509	List: ML20050A508 ML20050A513 ML20050A515
References
798, TAC-48044, NUDOCS 8204010363
Download: ML20050A515 (6)

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Docket No. 50-346 License No. NPF-3 Serial No. 798 March 23, 1982

' Attachment I. Changes to Davis-Besse Nuclear Power Station Unit 1, Appendix A Technical Specifications Figures 3.1-2a and 3.1-3a of Cycle 3 Reload Report BAW-1707 (Figures 8-5 and 8-10 of the report).

A. Time required to Implement.

This change is to be effective upon NRC approval.

B. Reason for Change (Facility Change Request 80-268 Supplement 2).

The final burnup of Cycle 2 at Davis-Besse lies within the 306+10 EFPD window. .This results in the relaxation of the regulating rod insertion limits for the first 60 EFPD of Cycle 3.

C. Safety Evaluation (See attached) f f

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SAFETY EVALUATION i

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.This request provides the revised regulating rod insertion limits for four 1, and-three pump operation during the first 60 effective full power days of

' Cycle 3 operation. The safety function of these limits is to ensure maintenance'of acceptable power distribution limits and shutdown margin.

These limits.also control the potential effects of a- rod ejection i accident.

.The relaxation in the attached curves (limits) is brought about by the final burnup;of Cycle 3 (296 EFPD) which lies in the 306i10 window of the i

revised Cycle 2 (complete' withdrawal of axial power shaping rods and coasting down of power level towards the end of cycle) design.

Per the analysis provided in the reload report and the safety evaluation j 'in~ Toledo Edison submittal of March 5. 1982'(Serial No. 787), it is

,  ! concluded that the inferences of the reload analysis and the previous safety-evaluation are not violated. Hence, it is concluded that the changes preposed herewith do not involve an unreviewed safety question.

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