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Old 9th Jul 2010, 08:24
  #1718 (permalink)  
sensor_validation
 
Join Date: Jul 2009
Location: UK
Posts: 133
Much discussion since first few days after accident that loss of control could have been caused by inappropriate "Pitch and Power" following disconnection of autopilot and auto-thrust - hence the reminder Airbus sent out on 4th June 2009

http://www.pprune.org/rumours-news/3...ml#post4976210

But isn't this a systems design fault - admitting that the auto-controls can hand back control to the pilots in an inappropriate state requiring immediate action?

The BBC made a suggestion that the loss of reliable air-speed was during a commanded speed reduction, so the engines could be close to flight idle.

Shouldn't the a/p and a/thr disconnect leaving the pitch and thrust settings at an appropriate setting for 'steady' flight?

'Steady' in quotes as I suspect you find out how much the controls do to counter the phugoid mode even without turbulence and changing winds inside the storm, so it would be a roller coaster ride.
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