Originally Posted by
Capn Bloggs
Oh come on, Training Wheels! Do you really think someone smart enough to actually create a user waypoint in the FMS would then sit there for hours as the aircraft headed in the wrong direction by 135-odd degrees because they messed up N and S?
That's assuming everything was ops normal and they were monitoring the cruise. For all we know, the incorrect entry could have been made in a near hypoxic state due to depressurization, both crew eventually becoming completely incapacitated and the aircraft continued on flying until fuel exhaustion.