FAA chief faces questions over Boeing 737 Max crashes

[Midnightwalk]

1. There should be a Feynman type investigation

Like there was for the challenger disaster. Don’t presume where there is and isn’t fault.

Did the design decision to add the larger engines to the existing frame make it fundamentally flawed? That is was it reasonable to try to fix the instability with the new software feature?

How did the business decision to not require new training for this model impact the pilot’s ability to know whether the mcas system was actively pitching down or the ability to disengage the system permanently?

How did the FAA pushing certification back to the vendor contribute to the failures?

I read that having mcas pitch down due to angle of attack made the sensor fall into a more critical category which required redundancy. What is that full story? Sorry im too lazy to google that right now.

Likewise I read that the original design limited elevator movement but that was increased during flight testing to increase stability. Was that change properly reviewed and approved?

The testing, certification and approvals missed the problem. What changes to those processes were made for the fix? Are there other fixes not in the first delivery?

The FAA was almost if not last in saying there was a problem. Why did other countries decide to ground the plane first?

I am not in the aviation industry but those are the questions I would like an independent auditor to answer.