China and the company COMAC have now completed all the planned test flights with the new C919 aircraft type.In total, the manufacturer has carried out tests with six prototypes, of which the sixth and last machine has now flown its last trip.COMAC has then flown certification flights and test flights since 5 May 2017, and the road to 2022 has been long.Only shortly after the first plane was in the air, technicians discovered that there were serious problems with how the engines were mounted to the wings, and problems were also discovered with the tail rudder.The manufacturer had to redesign the aircraft type before new flights could take place.After this, the program was on track until the corona pandemic started, which disrupted the entire production and tests.COMAC does not mention anything in its press release about the process of getting the aircraft type certified, and when this is expected to be completed, in addition, the manufacturer almost shone with its absence during the Farnborough Airshow 2022 in Great Britain last week.There was only a small stall with some posters and a model aircraft, without any representatives of the manufacturer present.The C919 should be able to cover 4,074 kilometres, while the ER version should be able to cover 5,556 kilometres.China has chosen to equip its aircraft with the CFM LEAP-1C, a new variant of the 1A engine.Russia has seen the aircraft type with great interest, but the fact that the Chinese have chosen Western engines rules out that Russian airlines will now choose to buy the C919.