In March 2019, countries around the world banned the Boeing 737 Max from flying in their airspace, due to safety concerns following the crash of Ethiopian Airlines Flight 302 and the crash of Lion Air Flight 610 five months prior. On March 13, 2019, the US joined the list of countries banning the Boeing 737 Max when US President Donald Trump ordered the grounding of all Boeing 737 Max 8 and 9 aircraft. With 4.5% of its fleet being the banned aircraft (34 out of 755 planes), Southwest Airlines was significantly impacted by the ban.