CONF iture Quote:
Originally Posted by GY
Can anyone expand on what happens in the case of unreliable airspeed with respect to the stall warning?
FCOM :
IOW, with a Stall alert (2 of them) as the immediate environment after a/p drop, what was the cause of AoA being "At Stall" ALREADY? Prior to PF's altering the a/c's controls positions?
IF IN NORMAL LAW THE STALL WARNINGS MAY HAVE BEEN FALSE.
IF IN ALTLAW THEY WERE GENUINE.
THIS SUGGESTS THAT THE A/C WAS IN NORMAL LAW AFTER A/P DROP, AND HENCE A/P LOSS COULD NOT BE RELATED TO LOSS OF SPEEDS, BUT ONLY ITS OWN INABILITY TO TRIM THE A/C. OR, THE AUTOPILOT HAD TRIMMED THE A/C INTO A STALL.
A point I have been trying to make for nearly two years. perhaps badly?
If true this suggests that the A/C had trimmed almost completely into Upset, then Stall, then LOC. It also makes Pitot ICE a remote event.
Pas de quois, Thales