“Boeing executives withheld pertinent information from the Federal Aviation Administration when certifying the new plane in 2017, in an attempt to save tens of millions of dollars by not being required to provide additional training to pilots.”
https://www.texastribune.org/2023/01/26/boeing-737-max-crashes-lawsuit/
Boeing crash victims’ families challenge prosecution deal in court

The airplane manufacturer was accused of fraud for misleading federal regulators about the safety of its jets, but stayed out of court by making a deal with prosecutors. Victims’ families say they were cut out of the process.

The Texas Tribune