https://www.npr.org/2019/05/06/7205...ensor-problem-before-plane-crash-in-indonesia Boeing alerted FAA of problem following Lion Air crash. This is getting messier by the day. Hope Boeing has some top-notch lawyers. This sounds expensive. "Boeing says it discussed the indicator problem at that point with the Federal Aviation Administration — a year after the company knew about the problem. The company then convened another safety review, which concluded once again that the absence of the alert was not a safety issue. It shared the analysis with the FAA. The FAA said in a statement that its review board "determined the issue to be 'low risk' and would be required to be a part of Boeing's overall enhancement announced after the Lion Air [crash]. However, Boeing's timely or earlier communication with the operators would have helped to reduce or eliminate possible confusion." As with initial certification of aircraft I wonder if FAA review board and Boeing safety review board consisted of same people who just happened to be Boeing employees.