As the explorer and the guide of the aircraft designed by the country, this type of aircraft is gathering operation experience. And at the same time, there are a lot of downsides just like the low daily service efficiency, being hard to operate, having much more repeated failures than A320 (The number of repeated failure of Airbus aircraft is zero, whereas the number of this type of aircraft is dozens.), and some of the failures being responded slowly. Some of these downsides are caused because of lacking of design reliability of this type aircraft. The others expose the lack of operation support ability. And the resolution ability of operation failure records is the key of operation support ability. It could make the failure data resolution efficient, support the design development and then check if the design development could work in the way that engineers were supposed throughout marking and analyzing operation failure data. It could improve operation support ability of aircraft designed by the country and then improve commercial competitive power of aircraft.