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FAA issues emergency AD on Boeing 777 ADIRU software
29 August 2005

The U.S. FAA issued an emergency AD to prevent the operational program software (OPS) of the air data inertial reference unit (ADIRU) of the B777 from using data from failed sensors, which could result in anomalies of a.o. the fly-by-wire primary flight control and autopilot. This AD resulted from a recent report of a significant nose-up pitch event. (FAA)