Originally Posted by
Alpine Flyer
As for the annual psych, some companies would love this at it would be a great way to get rid of unwanted pilots.
Psych tests are helpful but unfortunately not accurate enough to be usefully predictive.
Furthermore, the predictive power of psychology seems to be limited, as ever so often serial killers or molesters are released as "healed and no further danger to society" only to prove their shrinks wrong.
The only system that has worked fairly well, although not 100%, but close, is screening and monitoring of US military pilots. These guys are under constant scrutiny and we've had very few rogue pilots, the most recent I am aware of being in 1997 when a guy flew an armed A-10 around the desert southwest before (apparently) intentionally crashing with just minutes of fuel left.