OCT. 29, 2018 – A Lion Air 737 MAX plane crashes in Indonesia, killing all 189 people on board
NOV. 13, 2018 – FAA, Boeing says it evaluates the need for software changes or design of 737 MAX aircraft following the Lion Air accident
NOV. 30, 2018 – Boeing weighs in on plans to launch a software upgrade for its 737 MAX in six to eight weeks that would help address a scenario facing the Lion Air crew in Indonesia, sources told Reuters
MARCH 10, 2019 – An Ethiopian Airlines 737 MAX crashes, killing all 157 people on board
MARCH 12, 2019 – FAA says it will require Boeing to implement 737 MAX design changes by April, which have been underway for months
MARCH 13, 2019 – FAA joins other major global regulators to ground 737 MAX, citing evidence of similarities between the two fatalities
APRIL 6, 2019 – Boeing says it will reduce monthly production of 737 MAX by almost 20%; US and airline officials say they believe the plane could be grounded for at least two months
MAY 16, 2019 – Boeing says it has completed a software update for its 737 MAX aircraft and is in the process of submitting a pilot training plan to the FAA
JUNE 27, 2019 – Boeing says it will take at least September to fix a newly identified software problem that arose when FAA test pilots examined potential flight control computer failure scenarios in a 737 simulator MAX
JULY 18, 2019 – Boeing says it has taken regulatory approval for the return to service of the 737 MAX in the United States and other jurisdictions will begin in the fourth quarter
OCT. 24, 2019 – Boeing says it is still waiting for FAA approval to fly the 737 MAX in the fourth quarter, sending its shares higher, despite a decline in quarterly profit. The FAA says it will take “a few weeks” to review
NOV. 7, 2019 – US and European regulators ask Boeing to review documentation on proposed solution for 737 MAX software
NOV. 11, 2019 – Boeing says it expects the FAA to issue an order approving the plane’s return to flight in December, anticipating the resumption of commercial flights in January
NOV. 15, 2019 – The FAA chief tells his team to “take all the time necessary” in reviewing the 737 MAX
DEC. 11, 2019 – FAA Chief Steve Dickson says 737 MAX will not be allowed to fly before the end of 2019
DEC. 12, 2019 – Boeing abandons regulatory approval for 737 MAX to resume flight in December after the Federal Aviation Administration (FAA) said the plane would not be allowed to fly before 2020
DEC. 23, 2019 – Boeing fires CEO Dennis Muilenburg
IAN. 6, 2020 – An audit conducted in December reveals that wiring in the tail of the 737 MAX could shorten the circuit and lead to an accident if pilots do not know how to respond correctly
IAN. 9, 2020 – Boeing released hundreds of internal messages between employees to Congress and the FAA last week, raising serious questions about the development of its simulators and showing that employees could have covered problems
IAN. 13, 2020 – Budget airline Ryanair reveals it could receive first deliveries of up to 10 737 MAX ground planes from Boeing by April, but warns that this will depend on regulators
IAN. 16, 2020 – The Committee, appointed by Transportation Secretary Elaine Chao in April, finds that the FAA safety approval process was not to blame
IAN. 21, 2020 – Boeing announces that it does not expect federal regulators to approve changes to the 737 Max model from the ground until this summer, a few months longer than the company said just a few weeks ago.