CEO: Boeing made mistake in handling warning-system problem

Boeing planes on display at the 2017 Paris Air Show, in Le Bourget, east of Paris, France. (AP Photo/Michel Euler, File)

PARIS — The chief executive of Boeing said the company made a “mistake” in handling a problematic cockpit warning system in its 737 Max jets before two crashes killed 346 people, and he promised transparency as the aircraft maker works to get the grounded plane back in flight.