Thanks to the duopoly in the market, right now, there is no replacement for the 737. Cancelling the MAX would create a plane gap of about 5000 planes. This alon

Thanks to the duopoly in the market, right now, there is no replacement for the 737. Cancelling the MAX would create a plane gap of about 5000 planes. This alone has the potential to severely impact the safety of commercial aviation. Older planes get flown longer, even when they should be retired. Also, creating a replacement would take at least 10 years. Any attempt to rush this has the risk of creating a much larger disaster than fixing MCAS. With MCAS, there is a defective software (which can and is being fixed) on a well-known and reliable airframe. With a new plane, you start from scratch in every aspect. Yes, Boeing should start a successor of the 737 on full steam, but stopping the 737 doesn't sound like a good idea.