Boeing has completed development of the updated software for the B737 MAX, the company has said in a statement.

The update was announced by CEO Dennis Muilenburg following the crashes of Ethiopian Airlines flight 302 and Lion Air flight 610.

In addition to the Manoeuvring Characteristics Augmentation (MCAS) software update, Boeing has also completed simulator testing and the engineering test flight. The company says it has flown the aircraft with updated MCAS software for more than 360 hours on 207 flights.

Boeing is now providing additional information to address Federal Aviation Administration (FAA) requests that include details on how pilots interact with the aircraft controls and displays in different flight scenarios. Once the requests are addressed, Boeing will work with the FAA to schedule its certification test flight and submit final certification documentation.

Boeing Chairman, President and CEO, Dennis Muilenburg, said: “We’re making clear and steady progress and are confident that the 737 MAX with updated MCAS software will be one of the safest airplanes ever to fly.”

In addition, Boeing has developed enhanced training and education materials that are now being reviewed with the FAA, global regulators, and airlines. This includes a series of regional customer conferences being conducted around the world.