OCT. 29, 2018 – A Lion Air 737 MAX plane crashes in Indonesia, killing all 189 people on board
NOV. 13, 2018 – FAA and Boeing say they are evaluating need for software or design changes on 737 MAX jets after Lion Air crash
NOV. 30, 2018 – Boeing is considering plans to launch a software upgrade for its 737 MAX within six to eight weeks that would help address a scenario facing Indonesia’s Lion Air crew, sources told Reuters.
MARCH 10, 2019 – An Ethiopian Airlines 737 MAX crashes, killing all 157 people on board
MARCH 12, 2019 – FAA says Boeing will make design changes to the 737 MAX in April that have been months in the works
MARCH 13, 2019 – FAA joins other major global regulators in grounding the 737 MAX, citing evidence of similarities between the two fatalities
APRIL 6, 2019 – Boeing Says It Will Cut Monthly 737 MAX Production By Nearly 20%; US and airline officials say they think the plane can be grounded for at least two months
MAY 16, 2019 – Boeing says it has completed a software update for its 737 MAX jets 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 resolve a newly identified software issue that emerged when FAA test pilots assessed potential flight control computer error scenarios in a 737 MAX simulator
JULY 18, 2019 – Boeing says it has passed regulatory approval that the return of the 737 MAX in the United States and other jurisdictions will begin early in the fourth quarter
OCT. 24, 2019 – Boeing still says it expects FAA approval to fly the 737 MAX in the fourth quarter and send its stock higher despite a decline in quarterly earnings. FAA says it will take “several weeks” for review
NOV. 7, 2019 – US and European regulators ask Boeing to review documentation on the proposed 737 MAX software fix
NOV. 11, 2019 – Boeing says it expects the FAA to issue an order to approve the plane’s return to flight in December, predicting commercial flights to resume in January
NOV. 15, 2019 – FAA chief tells his team to ‘take all the time it takes’ in their assessment of the 737 MAX
DEC. 11, 2019 – FAA chief Steve Dickson says the 737 MAX will not be allowed to fly before the end of 2019
DEC. 12, 2019 – Boeing abandons its goal of obtaining regulatory approval for the 737 MAX to resume in December after the US Federal Aviation Administration (FAA) said the plane would not be allowed to fly before 2020
DEC. 23, 2019 – Boeing fires CEO Dennis Muilenburg
JAN. 6, 2020 – An audit conducted in December shows that the wiring in the back of the 737 MAX can short and lead to a crash if pilots don’t know how to respond correctly
JAN. 9, 2020 – Boeing last week published hundreds of internal messages between employees to Congress and the FAA, raising serious questions about simulator development and showing that employees may have concealed problems
JAN. 13, 2020 – Budget plane Ryanair reveals it could receive first deliveries of up to 10 737 MAX planes on the ground from Boeing in April, but warnings will depend on regulators
JAN. 16, 2020 – Commission appointed in April by Transport Secretary Elaine Chao finds FAA security clearance process not a mistake
JAN. 21, 2020 – Boeing announces it does not expect federal regulators to approve their changes to the grounded 737 Max until this summer, several months longer than the company said a few weeks ago.