 The company indicated that most of the delay was due to modifications required to aircraft produced by Shenyang Aircraft as a result of further spin testing and the earlier crashes of the prototypes.The first production aircraft were delivered from China, assembled by Cessna contractor Yingling Aviation and then modified by adding the ventral fin and decreasing the elevator and aileron travel.In February 2012, the assembly of the plane was moved to Cessna's Independence, Kansas factory, ending Yingling's participation.