Aeroflot Flight 821 was a scheduled passenger flight operated Being_in_operation by Aeroflot-Nord in a service Supply agreement Agree_or_refuse_to_act with Aeroflot and as its subsidiary .

This air disaster Catastrophe led to Causation Aeroflot-Nord rebranding Name_conferral as Nordavia , effective on 1 December 2009 and later to Smartavia in 2019 .