ML20247B850

Forwards Safety Evaluation Concluding That License Condition 4 Requirement to Submit Addl Evaluation of Control Sys Failures & Propose Implementations of Any Corrective Actions Satisfied

ML20247B850
Person / Time
Site:	Clinton
Issue date:	05/15/1989
From:	John Hickman Office of Nuclear Reactor Regulation
To:	Holtzscher D ILLINOIS POWER CO.
Shared Package
ML20247B857	List: ML20247B850 ML20247B879
References
TAC-62991, NUDOCS 8905240261
Download: ML20247B850 (4)

Text

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1. ". . May 15, 1989 l

. Docket No. 50-461 Mr. Dale L. Holtzscher Acting Manager - Licensing and Safety Clinton Power Station P. O. Box 678 1 Mail Code.V920 Clinton, Illinois 61727

SUBJECT:

CLINTON POWER STATION, LICENSE CONDITION 4, CONTROL SYSTEMS FAILURE (TACNO.62991) .

1 License Condition 4 of facility operating license NPF-62 for the Clinton Power Station (CPS) required Illinois Power Company (IP) to submit the results of an -

. additional evaluation of control system failures and. propose implementations of

. any corrective actions.. By letter dated November 18, 1988, IP submitted the required analysis. Methodology for this analysis was approved in NUREG-0853, -

Supplement 6, and the staff provided guidelines for certain aspects of the analysis in our request for additional information. Our review found that J the analysis followed staff guidelines and approved methodologies, and is, J therefore, acceptable. IP has committed to several improvements to minimize I the probability of loss of feedwater heating and an administrative procedure  ;

calling for reactor shutdown should a loss of feedwater heating result in a i feedwater temperature reduction approaching 100*F. The staff finds these improvements to be acceptable. Therefore, the staff considers License. 3 Condition 4 to heve been satisfied. Should you wish to have License j Condition .4 deleted from your operating license, you may request that your i license be amended. l i

Sincerely, John B. Hickman, Project Manager Project Directorate III-2 Division of Reactor Projects III,  ;

IV, V, and Special Projects cc: See next page '

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.- ,/ May 15, 1989 Docket No. 50-461 Mr. Dale L. Holtzscher Acting Manager - Licensing and Safety Clinton Power Station P. O. Box 678 Mail Code V920 Clinton, Illinois 61727 )

Dear Mr. Holtzscher:

I

SUBJECT:

CLINTON POWER STATION, LICENSE CONDITION 4, CONTROL SYSTEMS FAILURE-(TACNO.62991)

License Condition 4 of facility. operating license NPF-62 for the Clinton Power j Station (CPS) required Illinois Power Company (IP) to submit the results of an a additional evaluation of control system failures and propose implementations of any currective actions. By letter dated November 18, 1988, IP submitted the required analysis. Methodology for this analysis was approved in huREG-0853, Supplement 6, and the staff provideo guidelines for certain aspects of the analysis in our request for additional information. Our review found that the analysis followed staff guidelines and approved methodologies, and is, ,

therefore, acceptable. IP has committed to several improvements to minimize 1 the probability of loss of.feedwater heating and an administrative procedure calling for reactor shutdown should a loss of feedwater heating result in a feedwater temperature reouction approaching 100*F. The staff finos these is.provements to be acceptable. Therefore, the. staff considers License Condition 4 to have been satisfied. Should you wish to have License.

Condition 4 deleted from your operating license, you may request that your license be amended.

Sincerely, j i

P3' M John B. Hickran, Project Manager .

Project Directorate III-2 Division of Reactor Projects III, i IV, V, and Special Pro.iects  ;

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cc: See next page l

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, ', May 150 1989 Docket No.- 50-461 Mr. Dale L. Holtzscher Acting Manager - Licensing and Safety Clinton Power Station P. O. Box 678 Mail Code V920 Clinton, Illinois 61727-

SUBJECT:

CLINTON POWER. STATION, LICENSE CONDITION 4, CONTROL SYSTEMS FAILURE (TACNO.62991)

License Condition 4 of facility operating license NPF-62 for the Clinton Power Station (CPS) required Illinois Power Company (IP) to submit the results of an additional evaluation of control. system failures and propose implementations of any corrective actions. By letter dated Novenber 18, 1988, IP submitted the required analysis. Methodology for this analysis was approved in NUREG-0853, Supplement 6, and the staff provided guidelines for certain aspects of the analysis in our request for additional information. Our review found that the analysis followed staff guidelines and approved methodologies, and is, therefore, acceptable. IP has committed to several improvements to minimize the probability of loss of feedwater heating and an administrative procedure calling for reactor shutdown should a loss of feedwater heating result in a feedwater temperature reduction approaching 100'F. .The staff finds these improvements to be acceptable. Therefore, the staff considers License Condition 4 to have been satisfied. Should you wish to have License Condition 4 deleted from your operating license, you may request that your license be amended.

Sincerely, John B. liickman, Project Manager Project Directorate III Division of Reactor Projects III, IV, V, and Special Projects L

l cc: See next page DISTRIBUTION ~

Uocket file JHichen NRC & Local PDRs OGC PDIII-2 r/f EJordan Gliolahan BGrimes

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• Mr. Dale L. Holtzscher Clinton Power Station Illinois Power Company Unit I cc:

Mr. D. P. Hall Illinois Department Vice President of Nuclear Safety Clinton Power Station Division of Engineering P. O. Box 678 1035 Outer Park Drive, 5th Floor Clinton, Illinois, 61727 Springfield, Illinois 62704 Mr. R. D. Freeman Mr. Donald Schopfer Manager-Huclear Station Engineering Dept. Project Manager Clinton Power Station Sargent & Lundy Engineers P. O. Box 678 55 East Monroe Street Clinton, Illinois 61727 Chicago, Illinois 60603 Sheldon Zabel, Esquire Schiff, Hardin & Waite 7200 Sears Tower 233 Wacker Drive Chicago, Illinois 60606 Resident Inspector U. S. Nuclear Regulatory Commission RRf3, Box 229 A Clinton Illinois 61727 Mr. L. Larson i Project Manager General Electric Company 175 Curtner Avenue, N/C 395 San Jose, California 95125 Regional Administrator, Region III 799 Roosevelt Road, Bldg. 64 Glen Ellyn, Illinois 60137 Chairman of DeWitt County c/o County Clerk's Office l

DeWitt County Courthouse Clinton, Illinois 61727

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