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Old 8th Jul 2012, 13:24
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DozyWannabe
 
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Originally Posted by rudderrudderrat
Hi DozyWannabe,
the times and modes are here
http://www.bea.aero/docspa/2009/f-cp...nexe.02.en.pdf
I hope Airbus changes the FD logic. If the FDs are withdrawn automatically, then they should remain withdrawn until the pilots reselect them.
To have them reappear automatically in a different mode to that which the pilots originally engaged them, can be very confusing.
Agreed. That behaviour is far from optimal and should be altered regardless.

That said, while the times and modes are displayed in the annex, that still only provides an estimate of what might have been displayed. Taking a look at the timeline, the FDs reappeared twice during the climb phase of the accident sequence - first in ALT CRZ* mode, and subsequently in VS/HDG mode. They then reappeared during the descent phase several times.

Here I need a bit of clarification - in this mode, will the FDs lock to the current vertical speed or the selected vertical speed?
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