Indonesian investigators reported Friday that Boeing, acting without adequate oversight from US regulators, failed to grasp risks in the design of cockpit software on the 737 MAX, sowing the seeds for the Oct. 29, 2018, crash of Lion Air Flight 610. On Tuesday, Muilenburg denied Boeing's initial statements about the investigative findings from the Lion Air crash sought to shift blame onto pilots. Muilenburg was then asked why Boeing had not grounded the plane in the wake of Lion Air Crash. "If we could go back, we would make a different decision," he said.