Originally Posted by
DaveReidUK
I don't think they did.
You are absolutely correct. My apologies. I assumed they had added a third like Airbus have as standard. My mistake.
From Wiki....
- The new flight control laws now require inputs from both AOA sensors in order to activate MCAS. They also compare the inputs from the two sensors, and if those inputs differ significantly (greater than 5.5 degrees for a specified period of time), will disable the Speed Trim System (STS), which includes MCAS, for the remainder of the flight and provide a corresponding indication of that deactivation on the flight deck.