&gt; and why shit pilots crash them whenever anything doesn&#x27;t go exactly like a simulator textbook.<p>Often it according to a simulator textbook but pilots haven&#x27;t studied the text book enough so they end up being confused what mode the autopilot is on, override and crash the plane.<p>I think FAA even calls that as such -- &quot;mode confusion&quot;.<p>Of course it could be the problem of user interface or warning and error reporting is not clear and explicit (alarm is blaring so they ... just ignore it because it has so many false positives).