3Ten:
I've flown a *state of the art* aicraft before, that was the L1011, wich had latest tech for it's era, and didn't have many bugs.
Oh yes it did. If the two computers linked to the yokes had different amounts of pressure set to disengage the autopilot, the autopilot would read as disengaged on the side with the lower pressure setting, but would read still engaged on the other side. This led to the world's first widebody disaster, Eastern Airlines EAL401 over the Everglades in Florida.
That said, by all accounts it was a wonderful aircraft, although I never got the chance to board one. I think Lockheed poached the team that built the Trident Triplex Autoland to get the thing built, too.