Originally Posted by
VicMel
The software in the two ADRIUs is different, it has to allow for the fact that the two vanes are on opposite sides of the cockpit, so I believe they probably use different correction tables, or the algorithm to apply to them is subtly different, possibly something as simple as using a wrong sign.
Yes, the L and R AoA sensors on the 737 are interchangeable, so for a given AoA they will generate rotational signals in the opposite sense to each other. At the very least, the ADIRUs will have to resolve that.