These are fair points, but the FAA report used the wording "extremely rare" (or similar) instead of a concrete quantity, and I find that extremely reprehensible

These are fair points, but the FAA report used the wording "extremely rare" (or similar) instead of a concrete quantity, and I find that extremely reprehensible. As we all know, "extremely rare" needs to be quantified. There are 44k flights in the US alone every day (pre COVID). > MCAS breaking is rare This is the part I'm not particularly inclined to agree with. The scenario is no longer breaking, it's breaking OR disabling. There are a host of new conditions that will result in MCAS being disabled according to the report. Some of these conditions disable MCAS for the remainder of the flight, and the way that I read the scenarios, it's certainly possible for these conditions to stack together. Reading the report gives the impression that the FAA is completely incompetent. They didn't specify any rate of failure or disabling of MCAS, and the 'failure scenarios' that are proposed to be carried out in the near future are lacking in exposing these disabled scenarios. Also, the FAA stated in the report that the plane handles similar to the 737 NG when STS is disabled; however, the MCAS automation disables MCAS and STS. There is no information about the rate at which STS has been disabled in flights in NGs, and no comparison on how disabling STS during the 'near stall' portion of a 'rare event' behaves in those planes. They wrote this long-winded document that's almost entirely devoid of meaningful factual detail. It reads like a Boeing PR piece if I've ever seen one.