Whilst it is difficult to pin down an accident that was
soley due to fatigue, fatigue can seriously affects decision making, situational awareness and the ability to manage threats and errors - among other things. Aircraft generally crash because of poor decision making and/or loss of situational awareness by flight crew. BTW it's not hard to find bad events where fatigue was a major contributing factor. Remember Chernobyl, Exxon Valdez, Flying Tigers B747F, Korean Airlines B747 at Guam, Three Mile Island accident and the list goes on and on and on. Even the DC-10 crash landing at Sioux City can be traced back to maintenance errors done at 03:00. As for FAID I think you will find, from a scientific point of view, it is becoming discredited in the aviation domain. It's fine for truck and train drivers but not for pilots/cabin crew.
