It sounds like you're suggesting that there *have* been reports.If so one would think that,particularly after the first crash,they would have been *widely* reported.
Given that both crashes were with Third World airlines and none of the planes delivered to First World airlines (just over 100) have crashed,my money's still on low IQ pilots,inexperienced pilots and/or poor English skills.
On the same aircraft the evening before the crash, a captain at Lion Air’s full-service sister carrier, Batik Air, was riding along in the cockpit and solved the similar flight control problems, two of the sources said. His presence on that flight, first reported by Bloomberg, was not disclosed in the preliminary report.
So the first crew didn't solve the problem alone. Add that to the fact that they did report the faulty AOA (angle of attack) pitot tube which was reportedly replaced. (the aircraft has one AOA on each side of the fuselage)
The MCAS system logic should have disabled itself. It has a stall condition reported from one, not both AOA. And it has the pilot desperately pulling back on the yoke. This is not the time to read the manual.
Also, several American pilots have reported problems with the 737Max that are related to the MCAS system and exiting the autopilot, causes nosedive.
It has been. And anyone paying attention to the story has seen them. Or check out the NASA database yourself.