"Flydubai" a dubai based airline first to declare it's dumping all of their 737 MAXes. These planes will end up on the 2nd hand market. And thus reduce demand for new planes.
That's the start. Others might follow.
Yesterday's BBC news : Boeing chief declared their plane's fault wan't the sole reason that the two planes crashed.
A bad start. Disowning responsibility.
https://www.bbc.co.uk/news/business-47980959