PPRuNe Forums - View Single Post - AF447 final crew conversation - Thread No. 2
Old 13th Mar 2012, 11:00
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sebaska
 
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Originally Posted by CONF iture
Originally Posted by A33Zab
The trace shows also the outboard ailerons remain centered all the way down even when the CAS was well below 190Kts.
This could be another protection from the PRIMS (due to rejection of ADIRU's?)
That question should be addressed by the BEA ... let's wait and see.
The SECs should have taken over, no ?
No. SECs don't take over valid PRIMs. In case of unreliable airspeed many protections remain as for a last valid speed.

Originally Posted by CONF iture
Originally Posted by AZR
I remain very surprised at your (and other's) "eagerness" to find (potentially catastrophic) failure with the aircraft.
My only eagerness is to make sure the victim's families have access to all the data, not only part of them. There is no excuse for the Judge not to include them in the proceeding. We want to know what happened, everything, not only what the crew did wrong.
But wild speculation does not bring families closer to truth, it only decreases signal to noise ratio. You want the data not a garbage.

This was addressed by BEA in interim reports that both wreckage as well as FDR recording indicate no structural failure up to the impact. Plane was responding to stick deflections, and was symmetric aerodynamically (otherwise it would not fall flat, wings level at such extreme AoA). It was (for many) surprisingly stable (many planes would need to enter flat spin to fall wings level from fl370 down to the .

Wild and unfounded (and in fact contrafactual) speculations were plenty here. When BEA said that fracture analysis of found rudder indicates almost flat impact with little forward speed and small roll to the left many here dismissed it and continued to speculate about plane disintegrating mid air. Then "black boxes" were found and read and surprise - they perfectly agree with that early rudder analysis. Yet still some contrafactual speculations surface all the time
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