Originally Posted by
DaveReidUK
Does anyone know what this mysterious, unidentified "design issue" related to the additional door on the Max 8-200 is ?
Apart from the reply by MC below - it seems the practical evacuation tests required have not been "practical" for a number of years. They have been using some formula to arrive at a number as real evacuations are dangerous.
I expect the calculations will be compared to real evacuation tests now. Would not surprise me if the calculation numbers match a wide body - but not so good on a single aisle aircraft.