MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures

[GordonR_Cape]

Originally Posted by 20driver

There is a report in today WSJ that there is a version of MCAS on the 767 based USAF tankers. (KC-46?)
This preceded the 737 Max system. It seems the wing pods for the refuel gear added extra lift.

https://www.wsj.com/articles/before-737-max-boeings-flight-control-system-included-key-safeguards-
Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed


Most WSJ articles are behind a paywall. It sees the tanker version relied on multiple inputs and had a control column cutoff.
Also it only made single adjustments to trim
I might have missed it but I don't seem to remember any mention of this previous system in this thread.
20driver

The KC-46 version of MCAS was mentioned many months ago. The WSJ link was posted in a parallel thread. I did not learn much new from the article, though it does cover material that may be unfamiliar to some readers (and the general public).

Edit: Earlier posts other threads:
737MAX Stab Trim architecture
Ethiopian airliner down in Africa
Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed