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by p_l 2543 days ago
Those problems started with Boeing wanting to keep 737NG type rating as a selling point.

Keeping the type rating means that they needed to avoid making completely new wings or significant fuselage changes, which would require a new type rating as well.

All of that led to fitting engines in a way that caused a bunch of aerodynamics problems, which led to crappy solutions.

The economic incentives started it.