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During the turbulence, you are likely to see the wing shaking, which is a bit scary for the passengers, especially when we could hear some creaking noise in the cabin at the same time. So is there a risk that the airplane wings break off because of the wing shaking? The creaking noise in fact comes from the moving or deforming of the cabin interior parts, which do not carry structural loads and cannot affect flight safety.
Since the wings produce the lift and need to carry all the weight of the airplane in flight, the engineers design the wings with a lot of flexibility and allow them to bend under the pressure of the airflow. In the ground static load test, you can see the wing tip of a Boeing 787 can be pulled up 26 feet without breaking off. The engineers need to reserve some strength in the design, so don’t worry about the wing shaking.
Updated on SEP 19, 2020