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Requests written notification re steps taken to meet NRC requirements re override capability of engineered safety features sys actuation signals for containment purge valve isolation.Response requested in 45 days.

Accession Number: ML17258A728

Date Released: Saturday, November 7, 2020

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• ML17258A727 - Requests written notification re steps taken to meet NRC requirements re override capability of engineered safety features sys actuation signals for containment purge valve isolation.Response requested in 45 days. (11 page(s), 1/12/1981)
• ML17258A729 - Safety evaluation of override of engineered safety features sys actuation signals for containment purge valve isolation. Licensee design is not acceptable.Requests mods.Draft SEP technical evaluation encl. (13 page(s), 1/12/1981)