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Forwards safety evaluation accepting continued operation of Unit 3 reactor coolant pump shafts until modified shafts installed at next refueling outage,based on speed of crack development in Units 1 & 2 & early detection capability.

Accession Number: ML17304A885

Date Released: Saturday, November 7, 2020

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• ML17304A884 - Forwards safety evaluation accepting continued operation of Unit 3 reactor coolant pump shafts until modified shafts installed at next refueling outage,based on speed of crack development in Units 1 & 2 & early detection capability. (6 page(s), 1/4/1989)
• ML17304A886 - Safety evaluation recommending that temporary Bently/Nevada monitoring sys be made permanent in order to increase efficiency of data analysis.Vibration monitoring of reactor coolant pumps for Units 1,2 & 3 should continue. (10 page(s), 1/4/1989)