FORT WORTH, Texas (AP) — American Airlines says it’s taking the Boeing 737 Max out of its schedule for two more months, until early June. That means American will cancel nearly 20,000 flights in the first five-plus months of 2020. American’s decision is an acknowledgment of the uncertainty about just when the grounded Max will fly again. It has been grounded since two crashes killed 346 people. Boeing is working on changes to the plane. Federal safety regulators say they have no timetable for letting it fly again.