Originally Posted by
Big Pistons Forever
Because for the first time ever 20 + yrs worth of klufges and work arounds dating back to the first 737NG, got a good looking at.......and the results were not pretty. The 737 is certified under the regulations that existed in 1967, those regulations ignored/allowed stuff that is now considered completely unacceptable. Getting the existing mish mash of technology to be compliant is, I would suggest, a lot harder than starting from scratch.
Nice post, too bad it's almost entirely wrong.
There is something called the "Changed Product Rule" or CPR (and before you get on about the FAA, CPR has been completely harmonized with EASA).
CPR basically says that when you make a major change to an aircraft (and new engines qualify),
anything that is changed has to step up to the latest regulations.
If you bother to check the MAX TCDS, you'd find precious few regulations date back to the original 737 TCDS (mainly having to do with structures).
For all the problems with the MAX, the regulations it was certified to are not one of them.