Asiana Airlines

Deaths on airliners have been trending downward for years

A look at airliner deaths after a Southwest Airlines Boeing 737 apparently blew an engine midflight Tuesday, killing a passenger:

— Tuesday's death was the first stemming from an in-flight accident on a U.S. airliner since 2009, when a Continental Connection flight crashed into a house near Buffalo, New York, killing 49 people on board and one on the ground.

— The last fatal airline crash in the U.S. was in 2013, when an Asiana Airlines jet crashed at San Francisco International Airport, killing three passengers.

— Southwest Airlines Co., based in Dallas, had never had an accident-related fatality of a passenger, although a boy died in 2006 when a Southwest jet...