Boeing hopes to bring the jet to market as it awaits for passenger travel to resume after a downturn caused by the coronavirus pandemic. However, stretching out the development opens up fresh risks for the plane maker, such as losing engineering attention and momentum, and tougher scrutiny from the U.S. Federal Aviation Administration during the years-long certification process. A delay could also mean problems for Boeing's supply chain. An announcement of the delay could come as early as this week when Boeing announces earnings. Reuters said that Boeing declined to comment on the 777X timeline.