ML20129F659

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Informs That TMI Action Item II.K.3.30 Requirements Re Small Break LOCA Analysis Met & plant-specific Analysis Not Required for Item II.K.3.31,based on Referencing C-E Owners Group
ML20129F659
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 07/01/1985
From: Butcher E
Office of Nuclear Reactor Regulation
To: Andrews R
OMAHA PUBLIC POWER DISTRICT
References
TASK-2.K.3.30, TASK-2.K.3.31, TASK-TM NUDOCS 8507170424
Download: ML20129F659 (1)


Text

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C July 1,1985 g Doclet No. 50-285 Mr. R. L. Andrews Division Manager - Nuclear Production Omaha Public Power District 1623 Harney Street Omaha, Nebraska 68102

Dear Mr. Andrews:

SUBJECT:

TMI ACTION PLAN ITEM II.K.3.30, SMALL BREAK LOCA ANALYSIS AND II.K.3.31, PLANT ANALYSIS 4

On June 20, 1985, the NRC found acceptable the Combustion Engineering Owners Group (CE0G) submittal, CEN-203, which justified continued acceptance of the CE small break LOCA model (CEFLASH-4AS) in meeting the

requirements of TMI Action Item II.K.3.30. This acceptance, however, is pending a confirmatory ber.chmark analysis to demonstrate good agreement between CEFLASH-4AS and the data from Semiscale test S-UT-08. On March 11, 1985, R. W. Wells, as Chairman of CEOG, committed to the performance of the validation and projected a December 1985 schedule for subnittal of a report on this effort.

On June 28, 1985, Omaha Public Power District also provided a letter referencing the CE0G March 11, 1985 letter and commitment to the validation of the CEFLASH-4AS agreement with the S-UT-08 test. Pending the successful validation of CEFLASH-4AS and based on our understanding that CEFLASH-4AS was used for the Fort Calhoun Station, we find that you have met the requirements of TMI Action Item II.K.3.30 and a plant specific analysis is not required for II.K.3.31. These items are therefore complete. Please advise this office within 30 days of receipt of this letter, or upon unsuccessful validation of the model, if for any reason our understanding is not correct and provide your plans and schedule for conpleting II.K.3.30 and II.K.3.31.

Sincerely,

/S/

4 Edward J. Butcher, Acting Chief Operating Reactors Branch No. 3 Division of Licensing cc: See next page Distribution: Docket File NRC & LPDrs OELD PKreutzer Branch Files ETourigny DWiggington ESylvester BSheron EJordan BGrimes ACRS 10 HThompson

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