US aircraft manufacturer Boeing has been in the red for a long time. Will this year be better? CEO Dave Calhoun doesn't want to commit himself.

Boeing is currently no longer allowed to expand production of the 737 Max series at the behest of the US Federal Aviation Administration. After a near-accident involving a 737-9 Max at the beginning of January, the supervisory authority is taking a close look at theProduction of the entire model series is under scrutiny. The company is facing a “serious challenge,” said CEO Calhoun.