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Old 27th May 2011, 19:17
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Lonewolf_50
 
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aa73, on the other hand, with the system as it is in A330, you don't get the other pilot "riding the controls" on you. (Haven't we all run into that once or twice in our lives? )

PEI:

You raise an interesting question beyond the three questions in re THS. :

At what point, after the interval (of unknown duration) during which airspeed wasn't reliable -- a period during which FDR recording is of dubious accuracy -- would the airspeed return to reliable state and so that one can again be confident of the FDR's recorded airspeed data?

Aside: It seems that at some point in the descent, the airspeed indication returned to reliable state. It might be dangerous to assume that when the stall indication returned, A/S was once again reliable. What appears to be true is that the airspeed data, erroneous or true, met the threshold of acceptance in the system. That is not necessarily identical to the airspeed measured by the system being what the airframe was experiencing in the airmass.

The crux of some tough analysis BEA will be doing in the near future seems to me to hinge upon the answer to that question.

Last edited by Lonewolf_50; 27th May 2011 at 19:33.
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