AoA
Garrison
Is it possible that the super cooled water that made the 3 different pitot tubes block with ice simultaneously, would also have prevented the AoA from moving thereby rendering it useless?
I don't think that some folks on this site realize the amount of chaos super cooled water can cause. At that altitude the air is so pure that the water cannot freeze. It needs some impurities for the ice to form. When this super cooled water came into contact with the aircraft it immediately turned to ice. It may also have formed on the nose and wings of the the 'plane making it heavier and changing the C of G.