A Boeing 737 MAX of Brazilian airline Gol lands at Salgado Filho airport in Porto Alegre, Brazil on December 9, 2020. More than 20 months after it was grounded following two deadly crashes, Boeing's 737 MAX returned to the skies Wednesday with an incident-free commercial flight in Brazil, said AFP journalists on board. Low-cost airline Gol's Flight 4104 from Sao Paulo arrived safely in the southern city of Porto Alegre about 70 minutes after take-off using the revamped jet, in a first that Boein