Why don't they just admit it and get on with fixing their problems.
Perhaps Boeing does not know which particular aspect fix. The proposals so far limit the effects of an errant AoA value on trim (MCAS issue), but without specifically identifying the source of error: - ‘
well whatever it is, the output is limited’.
But the other systems which use AoA appear not to be protected.
How can you prove (certification) that a system is now reliable if the orrigionating source of the problem is unknow, unreplicatable.
Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed