Originally Posted by
infrequentflyer789
On that point - can you show where it is confirmed that they did have IAS disagree, because as far as I can see it isn't mentioned at all in the report.
IAS is divergent (expected as ADIRU does use AOA to correct it, and AOA is massively diverged), but IAS DISAGREE isn't confirmed. I am pretty certain it should have happened, particularly given that it did with LionAir with AOA far less divergent, however there are several oddities in the narrative and traces that I can't get my head round at all.
eh, the FDR readout from the preliminary report shows some 20kt disagree and the non normal checklist for AOA disagree mentions possible IAS and ALT disagree....
so i wonder whats going on in the ADIRUs... the MAX documentation I got is no help at all...