As the 737 MAX scandal rolls on, “software delivered to Boeing” has been blamed by the company for the malfunctioning of a safety display.
In a statement issued over the weekend, the American airliner manufacturer admitted that its software was not properly displaying fleet-standard warning captions to pilots. This admission comes after sustained media reporting over cockpit angle-of-attack (AOA) displays and warnings, one of which was sold by Boeing to airlines as an optional extra for their aircraft.
Warning captions (wording that flashes up on the pilot’s display screen) on the 737 MAX included one, AOA Disagree, which alerted the pilots if the 737 MAX’s two AOA sensors were delivering different readings from each other. If the two go out of sync, the logic goes, one must therefore be faulty.
Source: The Register