AF 447 Thread No. 11

[Natstrackalpha]

mom pls +++
thanks.

Ice freezes the static and pitot (covers the static and pitot)
Affecting CADC
Affecting the 3 IRS
Affecting (SADC?)
the FACs thus affected (any back up to the FACS similarly affected)

Therefore in my astoundingly limited knowledge the PFD, displays no input from any of the aforementioned. Assuming the acceleromoters in the 3 IRSs
without the input from the CADCs and also the FACs do not function on their own. . . .to produce ATT info - thus rolled and banked - whether we are looking at normal Pitch alternate roll, and/or the whole nine yards - it was not happening because of the Ice/CADC/ and FACs.

Considering the freeze up happened in more or less S+L flight, then that is where (the ATT) remained.

Another theory, for your joy and entertainment is that Stall condition (which came later . . ?) and the protection trying to pitch down is thus offset by a certain somebody holding back press on the stick.

Hmm, considering that 2 stick inputs would sum algebraically would not the same summation occur if airplane wants to pitch down and something is stopping it from doing so? If this latter missive is the case, it would not explain limited or no indication in roll, whereas the CADC and FAC failure might - considering FACs had no input. However, just to shoot that idea down in lfmaes, and stick input woulr override/

Did the THS freeze over? At full forward trim? That would encourage one to pull the stick back coupled with the auto tendency to push the nose down (due to the stalled condition)

but your question was, what, in my mind, caused the ATT to freeze, excuse the pun.

Thanks a bunch bus TRE!