Um, perhaps not. They have the emails.
Boeing CEO admits design flaw led to crashes
The House Transportation Committee asked about a newly released internal email discussion between Boeing employees in 2015 -- more than a year before the plane's final approval for flight -- raising concerns about that design."Are we vulnerable to single AOA sensor failures with the MCAS implementation," the employee, whose name is redacted in the document, asked, raising the exact scenario blamed for the two crashes.
But committee members raised the prospect the company should have initially made a more stringent design. They pointed to another internal document, dated prior to the crashes, noting that "a slow reaction time" to a MCAS malfunction "found the failure to be catastrophic." In this document, "slow" was defined as longer than 10 seconds.