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Board Notification 83-21A:forwards memo providing NRC evaluation & conclusions re concerns previously identified in Board Notification 83-21 for TMI-1 only.Info does not adversely affect present conclusions re DHR.

Accession Number: ML20069D871

Date Released: Sunday, November 8, 2020

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• ML20069D865 - Board Notification 83-21A:forwards memo providing NRC evaluation & conclusions re concerns previously identified in Board Notification 83-21 for TMI-1 only.Info does not adversely affect present conclusions re DHR. (4 page(s), 3/11/1983)
• ML20069D872 - Provides followup evaluation of Board Notification BN-83-21 for TMI-1.Info does not adversely affect present conclusions re ability of TMI-1 to achieve & maintain DHR by natural circulation through steam generators. (17 page(s), 3/11/1983)
• ML20069D875 - Provides explanation as to why pool boiling-condensation natural circulation in TMI-2 was not established due to erroneous steam generator secondary side water level setpoints. (2 page(s), 7/23/1979)