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Old 11th May 2011, 01:57
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takata
 
Join Date: Jun 2009
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Hi,
Originally Posted by Oldengmkr
Perhaps AF 447 experienced a similar AoA law event as discussed in these excerpts from the cited AAIB and it precipitated a deep stall.
The use of AoA protection in direct Law, basically is to prevent a "low speed stall" to develop; what makes you think then, that by preventing an aircraft to reach a so called alpha Max would precipitate a "deep stall"?

A "deep stall" is a result of the loss of any elevator control due to the turbulent airflow generated by the wings. Not sure that this symptom could be applied to something else than a T-tail airframe.
But, more importantly, what you do understand from what was at stake in this report of A330-A340 Airprox event seems very far from AF447 case. The main issue was about the proximity of those two aircraft in turbulent weather. TCAS issues would be related with this 1st June 2009 catastrophe?

Originally Posted by Oldengmkr
As best as I can determine, this AoA law is still in use today. If a similar AoA law incident occurred to AF 447 it’s severity may have been compounded by the reduced crew on the flight deck at the time.
What was this AoA law incident reported?
There was no "reduced crew on the flight deck" either that we are aware of! Pilots were supposed to be at their post as per SOP.

S~
Olivier
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