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Old 14th Mar 2019, 15:14
  #23 (permalink)  
gums
 
Join Date: Jun 2009
Location: florida
Age: 81
Posts: 1,611
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Salute Safety !
Can't find the complete data traces from the Indonesian safety folks that released a few of the data plots, including the preveious flight.
Remember that the MCAS alternates AoA data probes with each cycle, so the alt/leading edge flap and other things may bot have been using the AoA probe that was 20 degrees higher than the other one.
However, that plot show classic MCAS operation with a bogus high AoA. It also shows the stick shaker going off briefly when the initil MCAS nose down trim kicks in and the plane loses a few hundred feet in a few seconds, back stick forces high and flaps put down again - bet they had enough of a reduced AoA /andor the flap position was a factor for the shaker then, but soon the shaker came back and remained until the end.
This should have the data plots and in pdf so you can zoom in.
KNKT Beberkan Data FDR Lion Air PK-LQP di DPR

Gums sends...

Last edited by gums; 14th Mar 2019 at 15:16. Reason: added verbiage
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