Boeing has released pictures of chief executive Dennis Muilenburg on board a 737 MAX 7 test flight demonstrating a software update to the anti-stall system.
Singapore Airlines has removed two Boeing 787-10s from service due to issues with the aircraft's Rolls-Royce Trent 1000 TEN engines.
The US Federal Aviation Administration (FAA) says it expects to receive the final version of Boeing's 737 MAX software update "over the coming weeks".
Boeing says a software update on its 737 MAX adds additional layers of protection from erroneous data out of the aircraft's angle of attack (AOA) sensors.
China has signed a general terms agreement to purchase 290 Airbus A320 family aircraft and 10 A350 widebodies for the country's airlines.
Boeing says it has invited about 200 aviation professionals to its Renton facility in Washington State for a technical briefing due to be held on Wednesday, March 27.