Airworthiness Directive · Amendment 39-19027 · Integrated modular avionics
Airbus Airplanes
This AD applies to all Airbus Model A350-941 airplanes, certificated in any category.
We are adopting a new airworthiness directive (AD) for all Airbus Model A350-941 airplanes. This AD requires repetitive on-ground power cycles to reset the internal timer. This AD was prompted by the in-service loss of communication between some avionics systems and the avionics network. We are issuing this AD to address the unsafe condition on these products.
Within 30 days after the effective date of this AD, do an on-ground power cycle to reset the internal timer, in accordance with Airbus Alert Operators Transmission (AOT) A42P001-17, dated June 30, 2017. Repeat the power cycle thereafter at intervals not to exceed 149 hours of continuous power-up.
Where Airbus AOT A42P001-17, dated June 30, 2017, specifies informing Airbus when the aircraft electrical power shutdown process is in place, this AD does not require that operators submit this information.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
