After the second crash, Ethiopian Airlines Flight 302 in 2019, Ethiopian authorities stated that the procedure did not enable the crew to prevent the accident, which occurred while a fix to MCAS was under development.[5] Boeing admitted MCAS played a role in both accidents, when it acted on false data from a single angle of attack (AoA) sensor. In early 2020, the FAA, Transport Canada, and European Union Aviation Safety Agency (EASA) evaluated flight test results with MCAS disabled, and suggested that the MAX might not have needed MCAS to conform to certification standards.[6]