PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 6th Sep 2019, 09:02
  #2210 (permalink)  
DaveReidUK
 
Join Date: Jan 2008
Location: Reading, UK
Posts: 10,986
Originally Posted by Notanatp View Post
First, the DFDR data from the two accidents suggests that the normal, stationary reading for the vanes is somewhere around zero.
I think it's more likely that the DFDR simply ignores AoA inputs below a given IAS threshold.

As noted above, on a parked aircraft you can expect to see the vanes oriented at pretty well any angle, in the absence of airflow.

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