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Old 11th Mar 2019, 12:16
  #338 (permalink)  
Maninthebar
 
Join Date: Apr 2018
Location: Sudbury, Suffolk
Posts: 163
AoA/Airspeed and MCAS

A lot of speculative thought and I add some....

If MCAS is implicated in this and the Lion accident then it is not just the implementation of this software that needs to be thought through.

Should we not also ask about the quality of the data being received by the system? For Lion we are (reliably?) informed that the accident aircraft had been the subject of erroneous AoA data on at least one previous flight and that this had then resulted in the replacement of the sensor. We have generally assumed from the published evidence that the accident flight ALSO suffered from this issue.

At this point William of Occam scratches his head and is wondering whether there is something else in common which is more likely than two sequential AoA failures.

Last edited by PPRuNe Towers; 12th Mar 2019 at 00:54. Reason: No confirmation of reported radio call
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