In 2017 Muilenburg has stated his top tips for leadership as " React quickly . Events can change everything . So must you . " , " Know your team . What really matters to them , on every scale ? " , " Chart the course . What should the next 100 years look like ? " In March 2019 , as a result of the Ethiopian Airlines Flight 302 crash and the Lion Air Flight 610 crash , which occurred five months prior to the Ethiopian crash , most airlines and countries began grounding the Boeing 737 MAX 8 due to safety concerns . On 12 March , President Donald Trump spoke to Muilenburg and received assurances that the aircraft was safe
Lion Air Flight 610
Lion Air Flight 610
Dennis Muilenburg