Originally Posted by
GordonR_Cape
Article summarises the fact that evidence is all in the FDR readout:
- Initial wild gyration of AOA sensor immediately after takeoff.
- Thereafter stable at implausibly high AOA.
- Moments before the final crash, the aircraft entered a negative-g bunt, AOA sensor flipped 180 degrees, stick shaker stopped.
Already hinted before in this thread, but the only physical explanation consistent will all of these data points is vane detachment. The event is clearly different from Lion Air, which had a constant 20 degree offset, but the end result was the same.
Re-posting annotated FDR readout:
All 3 sensors on the left side mess up at the same time , just not as bad as the AOA senser and also in the flip between 05:43:15 and 05:43:30 there is a influence on altitude speed and AOA so it seems the problem is not just with the one sensor but with the wiring or the adiru.
and on both flights they never look further then one of the sensors and then just clear the errors.
Is this poor acceptance checks or something ? just take the plane out for a circle and thats it and then 4 months later errors show up and the solution is to just spray some wd40 on the connector and clear the error log