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Forwards addl info re failure of Pump 3B inboard seal resulting in shutdown on 900211 shortly after unit placed on-line to commence Cycle 12 operation.Possibly caused by crack in inner seal cooler.GE safety evaluation encl.

Accession Number: ML17202H959

Date Released: Monday, July 31, 2017

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• ML17202H903 - Forwards addl info re failure of Pump 3B inboard seal resulting in shutdown on 900211 shortly after unit placed on-line to commence Cycle 12 operation.Possibly caused by crack in inner seal cooler.GE safety evaluation encl. (5 page(s), 3/19/1990)
• ML17202H996 - "Safety Evaluation Dresden Nuclear Power Station Recirculation Pump Cooling Sys Leakage Alteration (Two Loop Operation)." (13 page(s), 2/28/1990)