In the Q&A, there were two questions about topics that the speaker wasn't really aware of.
1. A purchase option for an instrument/indicator that shows discrepancies between Angle of Attack sensors on each wing.
2. In the KC-46A Pegasus it seems the pilots are able to override the MCAS system by simply pulling on the controls.
For me, #2 would have been an interesting discussion as perhaps Boeing chose not to re-use this system because it might delay certification. Imagine being the person who (may) have made the call to create a worse software than something that existed to sneak past compliance.
Note that for the 767-2C/KC-46 it's very likely the case that the 767-2C wouldn't share a common type-rating with the rest of the 767 family (as this wasn't a requirement for the KC-46 contract!), and for the 737 MAX a lot of design decisions were driven by the desire for the 737 MAX to have a common type rating with earlier 737 models.
From the 767-2C type certificate:
> The Boeing 767-2C has not been evaluated by the Flight Standards Board. No pilot type rating or training, checking and currency requirement determinations have been made.
Note the only 767-2Cs built were to certify the type, no airline has ordered the freighter aircraft.
On #1. No-one has, other than speculating, confirmed the option is cost difference (there are hundreds of options for the 737 series, many of which are just configuration differences). In the case of the indicator, there would need to be additional training, so airlines may opt not to have it to save on training, since it is not required.
1. A purchase option for an instrument/indicator that shows discrepancies between Angle of Attack sensors on each wing.
2. In the KC-46A Pegasus it seems the pilots are able to override the MCAS system by simply pulling on the controls.
For me, #2 would have been an interesting discussion as perhaps Boeing chose not to re-use this system because it might delay certification. Imagine being the person who (may) have made the call to create a worse software than something that existed to sneak past compliance.