ML20091K791

Draft Application for Amend to License DPR-46,revising Tech Spec 3.6.F.3 Re Single Loop Operation

ML20091K791
Person / Time
Site:	05000000, Cooper
Issue date:	06/08/1981
From:	Pilant J NEBRASKA PUBLIC POWER DISTRICT
To:	Ippolito T Office of Nuclear Reactor Regulation
Shared Package
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References
FOIA-84-105 TAC-42418, NUDOCS 8406070203
Download: ML20091K791 (2)

Text

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June 8, 1981 TRSCCPT MtCak Nf32AZA FtTEC Powet CCTMCI I

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,1-l Director, Nuclear Reactor Regulation y" a _ p /

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DAT, Attention:

Mr. Thouas A. Ippolito, Chief s

Operating Reactors Branch No. 2 NO. C# PAGES Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555 Subj ect:

Exoedited Change to Appendix A Technical Specifications Single-Loop Operation 4.

Cooper Nuclear Station NRC Docket No. 50-298, DPR-46

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Dear Mr. Ippolito:

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Reference:

1) Letter from J. M. Pilant to T. A. Ippolito Dated August 5, 1980 " Cooper Nuc1 car Station Single-Loop Operation"

2) Letter from J. M. Pilant to T. A. Ippolito Dated April 24, 1981 " Response to Single-Loop Operation Questions" In reference 1 the District submitted an analysis requesting revision to the Technical Specifications to allow continued operation of Cooper Nuclear Station with one recirculation loop out of service.

In reference 1 and reference 2 pro pt approval of the submittal was requested prior to startup from the May 1981 outage.

As discussed with the staff this date, the startup of CNS requires that the plant operate in excess of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with one idle recirculation O

loop so that the SC 2 te=perature differential of Specification 3.6.A.5 can be satisfied before bringing the idle loop on line.

Therefore, it is respectfully requested that Specification 3.6.F.3 be revised as follows on an expedited basis.

3.

The reactor shall not be operated for a period in excess of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with one recirculation loop out of service.

This time restriction shall be extended to 7 days for a period comc:encing June 8,1981". During this 7 day period:

a) the stead'a state thermal power shall not exceed 50% of rated, b) the MCPR safety limit shall be increased.01; c) the MCPR limiting cc..dition of operation shall be increased.01 for each fuel type; d) the MAPLHCR limit shall be reduced by 0.7 for all fuel types; e) the APRM scram and rod block set-points and the rod block monitor setpoints shall be reduced by 3.5%; f) the suction valve in the idle loop is closed and electrically. isolated.until the idle loop is being prepared for return to service.

8406070203 840319 PDR FDIA BELLB4-105 PDR e

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' Mr. Thomas A. Ippoll o June 8, 1981 Page 2 fee of $4,000 was enclosed with reference 1, Since a Class III amendment no cdditional fee is included at this time.

The staff's prompt attention to this request is greatly appreciated.

In addition to three signed originals, 37 copies are also submitted for your use.

Sincerely, A

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.. Pilant Director of Licensing t

and Quality Assurance

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