I've read there are various details of the airplane unrelated to aerodynamics that are considered fine in a legacy design but would need to be revised if the 73

I've read there are various details of the airplane unrelated to aerodynamics that are considered fine in a legacy design but would need to be revised if the 737 MAX were to be certified from scratch. Here is one example: https://www.reuters.com/article/us-boeing-737max/boeing-proposal-to-avoid-max-wiring-shift-does-not-win-u-s-support-idUSKBN20W018 https://www.reuters.com/article/us-boeing-737max/boeing-prop... My understanding of that issue: The 737 is wired in such a way that was considered fine when it was designed. In 1998 an MC-11 crashed which resulted in revised design standards that would render the 737's wiring invalid, except the 737 was already a proven design by this point and consequently has been allowed to continue flying the way it is. The 737 MAX continues to use this wiring configuration, which was initially considered fine because the the 737 MAX "is a 737", a proven legacy design. > Boeing did not forget how to design planes. I certainly did not and would not suggest otherwise. It's possible I'm mistaken about the above, I'm certainly not an expert on FAA matters, but I earnestly don't think I'm wrong. If you still think I'm wrong, I'd appreciate a substantive correction.