Why, all of a sudden, are bits of wings and doors falling off Boeing aircraft in mid-flight? Why was the 737 Max involved in so many crashes in 2019 and 2020? Boeing used to be the world’s biggest, most valuable and most trusted manufacturer of commercial aircraft. But something has changed. Boeing has declined relative to Airbus and relative to its former self. Boeing aircraft were not known for spontaneously falling apart, as happened with the wing last week and the door last month. Nor were they known for multiple crashes, as happened in 2021 and 2022.  Boeing’s broken wings…