Originally Posted by
KenV
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.
Correct. During Part 25 Certification a requirement for MCAS was identified. It was then added. As you stated, the current brouhaha relates to the lack of any form of reference material that’s visible to pilots.