bold if the title can fit comfortably in the lead sentence . -- > In March 2019 , aviation regulators and airlines around the world grounded the Boeing 737 MAX narrow-body passenger airliner after two new airplanes crashed in the preceding five months , killing all 346 people aboard . The accidents befell Lion Air Flight 610 in October 2018 , and Ethiopian Airlines Flight 302 in March 2019 . Ethiopian Airlines was first to act , grounding its fleet effective March 10 , the day of its accident . The next day , the Civil Aviation Administration of China made the first regulatory decision to ground airplanes , and most other aviation agencies and airlines followed in the next two days . The U.S. Federal Aviation Administration ( FAA ) , the certifying agency of the MAX , publicly affirmed the airplane 's airworthiness on March 11 , but grounded it on March 13 , citing new evidence of similarities between the two accidents . In all , 387 aircraft were grounded
Lion Air Flight 610
Lion Air Flight 610
Boeing 737 MAX groundings