SCD are you for real? I fly with a "senior" flight engineer, who is by pilot terms way over the hill! Hs is also one of the sharpest weve got....lets leave the decision in the same place as it has been in the past........The medical and the CAA appointed examiners.Its hard in this day and age to get past the media, but the choice of the healthy individual must,providing all else is in good order,be allowed.