Boeing Co did not tell U.S. regulators for more than a year that it inadvertentl...
) did not tell U.S. regulators for more than a year that it inadvertently made an alarm alerting pilots to a mismatch of flight data optional on the 737 MAX, instead of standard as on earlier 737s, but insisted on Sunday the missing display represented no safety risk
In a statement, Boeing said it only discovered once deliveries of the 737 MAX had begun in 2017 that the so-called AOA Disagree alert was optional instead of standard as it had intended, but added that was not critical safety data. “They provide supplemental information only, and have never been considered safety features on commercial jet transport airplanes.”
Boeing has said the feeding of erroneous Angle of Attack data to a system called MCAS that pushed the planes lower was a common link in two wider chains of events leading to both crashes, but has stopped short of admitting error on that front.
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