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Old 4th Apr 2019, 16:18
  #3119 (permalink)  
Join Date: Dec 2015
Location: Cape Town, ZA
Age: 58
Posts: 424
Originally Posted by GarageYears View Post
Some very strange error messages, not just AOA offset:
At 05:38:46 and about 200 ft radio altitude, the Master Caution parameter changed state. The
First Officer called out Master Caution Anti-Ice on CVR. Four seconds later, the recorded
Left AOA Heat parameter changed state.
Edit: I thought it was not possible to engage the autopilot while there was AOA disagree, but it seems that it did happen for a short interval.

Edit: The sequence in this crash was slightly different, with autopilot engaged before flap retraction. The first MCAS activation was not immediately after flaps up, but only after the autopilot disengaged a few seconds later. A subtle difference perhaps?

Last edited by GordonR_Cape; 4th Apr 2019 at 17:23.
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