MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures

[kiwi grey]

Originally Posted by b1lanc

So what you are saying is that all pre-Max versions of the 737 are unsafe? I don't think that is what the 'article' is implying. Has there ever been a non-Max 737 crash caused by inability of the crew to trim the horizontal stab?

No, only the NGs.
As I understand it:

1. the manual trim wheels were reduced in size from Classic to NG, making them harder to turn (less mechanical advantage)
2. the trimmable horizontal stabiliser size was increased from Classic to NG, but the elevators were not proportionally increased, reducing the relative authority of the elevators; and
3. the information about the 'bunt and wind the trim wheel' trim recovery technique disappeared from documentation and training syllabi for the NG

The Classics were properly certificated as safe, by the standards of the day