Originally Posted by
PastTense
See thread:
Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed
Thus Boeing hasn't implemented any fixes of the MCAS problem yet. While many airlines probably did some additional pilot instruction and other pilots learned of the problem in places like PPRUNE, many other pilots probably didn't.
And of course even if a pilot was informed of something doesn't mean he will remember it in a critical situation.
What is there to fix. There are numerous failures that can cause a trim runaway. They have been happening since the first electric trim systems were installed in aircraft. The 737 more than any aircraft currently in service provides a very positive indication of a trim issue via the trim wheels. Solution, disconnect the automatic trim system and continue the fight using manual trim.