ML20086K430

Forwards Rev to Proposed Change to Plant TSs Re DG Enhancements.Rev Moves TS in More Conservative Direction

ML20086K430
Person / Time
Site:	Cooper
Issue date:	07/14/1995
From:	Horn G NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20086K433	List: ML20086K430 ML20086K442
References
NLS950150, NUDOCS 9507200142
Download: ML20086K430 (3)

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GENERAL OFFICE  :

I P O. BOX 499. COLUMBUS, NEBRASKA 68602-0499 Nebraska Public Power District *i"Axi3l22n** j

. CUY R. HORN hPresident, Nuclear I I

(032) 563-5518 NLS950150  ;

July 14, 1995 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Subject:

Revision to Proposed Change No. 142 to Technical Specifications Diesel Generator Enhancements Cooper Nuclear Station j NRC Docket No. 50-298, DPR-46 I

Reference:

Letter, G. R. Horn to USNRC dated May 5, 1995, Proposed Change No. 142 to the CNS Technical Specifications i

" Diesel Generator Enhancements" Gentlemen:

In the above reference, the Nebraska Public Power District (District) submitted a proposed change to the Cooper Nuclear Station (CNS) Technical Specifications (TS) that would provide diesel generator (DG) enhancements to those TS. Included as part of this change were DG surveillance and Limiting Conditions for Operation (LCO) revisions that are consistent with the guidance provided in the Standard Technical Specifications (STS) NUREG 1433.

The District is currently assessing full conversion of the current CNS custom Technical Specifications to the Improved Technical Specifications.

In keeping with this philosophy the District is submitting this revision to incorporate the STS LCO for two DGs inoperable. In addition, the bases section clarifying the more restrictive LCO time for two DGs inoperable and time requirements for the plant to be in hot standby and cold shutdown for this condition are also included as part of this revision.

The applicable revised Technical Specifications pages incorporating the changes in both final and marked up forms are attached for consideration.

The changes submitted with this revision move the CNS Technical Specifications in a more conservative direction (e.g. LCO for both diesel generators inoperable from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />). Therefore, the District i

considers that the no significant hazards consideration contained in the  !

reference still to be valid.

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s 1 NLS95'0150 Page 2 l July 14, 1995 l l

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By copy of this letter and attachment the appropriate State of Nebraska ,

of ficial is being notified in accordance with 10CFR50.91(b) (1) . Copies to the NRC Region IV Office and CNS NRC Resident Inspector are also being sent in accordance with 10CFR50.4 (b) (2) .

Should you have any questions or require additional information, please contact me.

Sinc ely, G .y . Horn W

Vice- resident, Nuclear s

GRH/tja:pc-142.r1 '

Attachment cc: NRC Regional Office Region IV Arlington, TX NRC Resident Inspector Cooper Nuclear Station H. R. Borchert Department of Health State of Nebraska NPG Distribution 1

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, l LIST OF NRC COMMITMENTS l ATTACHMENT 3 l Correspondence No: NLS950150 The following table identifies those actions committed to by the District in this document. Any other actions discussed in the submittal represent intended or planned actions by the District. They are described to the NRC for the NRC's information and are not regulatory commitments. Please notify the Licensing Manager at Cooper Nuclear Station of any questions regarding this document or any associated regulatory commitments.

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COMMITTED DATE I COMMITMENT OR OUTAGE I I

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l l PROCEDURE NUMBER 0.42 l REVISION NUMBER 0 l PAGE 10 OF 16 l