An Air China Airbus A330-200, registration B-6533 performing flight CA861 from Beijing (China) to Geneva (Switzerland), was descending towards Geneva when the crew received indication of the green hydraulic system haiving failed due to low quantity. The crew performed an alternate gear extension and continued for a safe landing at Geneva.

Switzerland's SUST reported there was a heavy leak at the right hand engine's (Trent 772) pulsation damper. The aircraft needed to be towed off the runway due to the loss of nose wheel steering. The occurrence was rated a serious incident and is being investigated by the SUST.