Atrium may leave 2021 year of account open for aviation uncertainty Aisling Finn 06 April 2023 Twitter LinkedIn Email Show more sharing options Copy Link URLCopied! Print Twitter LinkedIn Email Atrium Syndicate 609 could leave the 2021 year of account (YoA) open to leave room for further aviation uncertainty, according to a Hampden note obtained by this publication. To unlock this article Register for a free trial Already a subscriber? Login now