What happened
On October 9, 2016, at approximately 12:35 UTC, an Airbus A330-343, registered as A6-AFE, was operating a scheduled commercial flight from Abu Dhabi International Airport to Geneva Airport. While in flight, the aircraft experienced a major failure within its green hydraulic system. The incident occurred during an instrument flight rules (IFR) operation involving 125 passengers and 11 crew members.
The investigation
The Swiss Transportation Safety Investigation Board (SUST) opened an inquiry into the event on October 14, 2016. Investigators focused on the mechanical failure that led to the loss of hydraulic pressure. Through technical collaboration with the aircraft manufacturer, the investigation determined that the failure originated from a significant leak in the pressurized lines associated with the number 2 engine. The investigation concluded that the event was an isolated mechanical occurrence rather than a result of systemic or organizational flaws.