Originally Posted by takata
Everybody seems to interpret ADR DISAGREE solely in relation with airspeed issues. So far, I don't know if it was only airspeed related as both AOA or pitot probes measuring values outside of their valid envelope could have basically the same effect.
Agreed, and everybody seems to think of the pitots misreading at high AoA, forgetting that airspeed is derived from the difference between two pressures: pitot and static. Sometime ago someone posted a drawing showing the static ports on the bottom of the front fuselage. At these AoA's the misreading of the static pressures may be more important than that of the pitot pressures.
EDIT:: Particularly when "The airplane was subject to roll oscillations that sometimes reached 40 degrees" (Thx to an anonymous reader of the thread).