Wikipedia:Articles for deletion/Ural Airlines Flight 178
This is indeed a highly uncommon occurrence, and sources appear to demonstrate notability. Although it's too soon to know if there will be lasting coverage, given the currently available news sources and effects mentioned therein, it seems pretty likely that this accident and its consequences will remain notable and significant (thus fulfilling  and hence 
— User:ComplexRational, 13:19, 1 October 2019 (UTC)
Stance: keep
Cited policy: WP:LASTING||WP:NEVENT (Wikipedia:Notability)