Let me add a little detail. The Lion Air 610 accident aircraft had its left AoA replaced on October 28 with a unit that was improperly overhauled by a company in Miami. The next day, it flew with that AoA and the crew that managed to recover from the MCAS misfire reported what they saw: IAS disagree. They couldn’t report AoA disagree because the aircraft didn’t have that capability.
The maintainers in Jakarta examined the IAS disagree fault and flushed both pitot systems. They didn’t touch or diagnose the faulty AoA because they had no reason to suspect it was faulty. And they didn’t know about MCAS or if they did, they didn’t connect the dots. I’m not sure anyone would have.