Ian W, #2055, you, and others assume that the vane is the source of error; this may be based on the FDR readout, but without knowing the origin of the FDR value - vane, digital bus, output of a computation, there could be alternative sources for the error.
Thus consider alternatives for erroneous AoA, specific to the 737 Max - wiring, interaction, software.
Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed
If a viable alternative is established or even if only likely (difficult to find a intermittent fault amongst the wreckage), then all Max aircraft will require inspection - if only we know what to look for.