He failure of the Boeing 737 MAX He emphasized some unwanted practices of his manufacturer regarding the implementation of his security systems. The truth is that this It is not the only airline that has problems, as a few days ago became evident error in the Airbus A350 software which forces the airlines to turn off the aircraft so often.
Some A350-941 models are needed switch off and on before reaching 149 hours of continuous operation, due to software failure. The problem is with the internal timer, which Failure to restart could result in the partial or total loss of some systems or specific functions in the central processing and output module (CPIOM).
If the aircraft were not turned off and on, some functions would be lost.
The CPIOM is a kind of minicomputer responsible for running discrete aircraft applications that are responsible for fuel management, the cab pressure control system or landing and retreat. The error implies that one or more functions could be lost, endangering the safety of the aircraft.
This error is not new, as it was discovered in 2017 and Airbus has developed a patch to correct the problem. At the time, the European Aviation Safety Agency (EASA) has issued an airline directive which invite airlines to apply the upgrade, something they haven't done all this time since they prefer to switch on and off airplanes every 149 hours.
Airlines do not require updating of the program
The directive sent by the EASA is only valid Airbus A350-941 models powered by Air France, Lufthansa, American Airlines, Delta Airlines, Air China and China Airlines. Although there is a scheduled update to remedy the failure, the agency ** does not force the airlines to apply it **, although it does indicate that if they did, the problem would be resolved.
That's normal the planes stay when they are at the airport, because the technicians carry out maintenance and control of the systems. Turning off and on the plane in front of the imposed limit is more practical for the airline, as it does not waste money keeping the aircraft on the ground while completing the scheduled upgrade.
The failure of Airbus is similar to one happened with the Boeing 787 Dreamliner, which forced the airlines turn off and on the aircraft after 248 days to prevent the aircraft's generators from being shut down during full flight.