The NTSB is poised to announce the probable cause of a mid-air door plug blowout on an Alaska Airlines Boeing 737 MAX jet.

Worries about the plane flared up again after a door plug blew off a Max operated by Alaska Airlines, leading regulators to cap Boeing’s production at 38 jets per month.

The commercial shipping industry is chasing a novel carbon-free propulsion technology as it pursues a lofty climate goal: nuclear power.

JetBlue Airways Corp. plans to hasten cost cuts by eliminating some flights, ending service to a number of cities and restructuring its leadership ranks.

Worries about the plane flared up again after a door plug blew off a Max operated by Alaska Airlines, leading regulators to cap Boeing’s production at 38 jets per month. Financial woes ...