Originally Posted by
Concours77
The issue is and remains: A flight critical controls mode is installed on a fleet. It screws up, and we find out no one knew of its existence.
It's one thing to mince rumors. Another to spout abject falsehoods. FAA, CAA, and lots of other regulatory folks were well aware of the existence of the MACS and tested it thoroughly. What Boeing did not do is include it in the pilot's flight manual. There is a vast vast difference between "not included in the flight manual" and "no one knew of its existence." VAST.