3 ms·
This is now marked as a dupe, so not likely to garner much more traffic, but I am curious what the “M.2” refers to in the transcript? Also, it’s pretty clear t
by zaroth 7y ago
This is now marked as a dupe, so not likely to garner much more traffic, but I am curious what the “M.2” refers to in the transcript?
Also, it’s pretty clear to me that they are confused by the parameters of when MCAS should be active and how much trim it should be applying. They are trying to figure out if the sim code is broken or out of sync with the spec. They are asking for spreadsheets identify exactly which flight envelopes it should be activating under.
This transcript perhaps demonstrates a cultural problem at Boeing around a safety critical system. What it doesn’t actually show is that Boeing knew about the specific MCAS issue that contributed to crashing two planes.
A question in my mind is what happened between this exchange and the next time this pilot went to the FAA to tell them to keep MCAS out of the docs.
I really hope they can trace this all the way to the top and not simply hang this test pilot out to dry.
- mannykannot 7y agoM.2 is mach 0.2 - the speed range in which MCAS was active had been expanded downwards. Your second paragraph is precisely to the point, and it is not clear to me whether these two pilots were ever given enough correct information to make an informed decision about the safety of MCAS.