Well, the manufacturers and certification define a MEL[0] which must be adhered to and outlines what equipment needs to be functional for a flight. If the MEL s

Well, the manufacturers and certification define a MEL[0] which must be adhered to and outlines what equipment needs to be functional for a flight. If the MEL specifies one AoA out is acceptable then you can bet the airline will fly with it until they can swap it out depending on maintenance constraints. [0] http://www.aopa.org/asf/publications/inst_reports2.cfm?article=4590 http://www.aopa.org/asf/publications/inst_reports2.cfm?artic...