 The problem is due to the axial part, not the centrifugal, and is not related to the overall compressor architecture.At this time the test engines had logged 800 flights, and the one concerned had 90 hours, including 30 hours on the ground and 60 hours in the air.On 13 December 2017, Dassault abandoned the Silvercrest due to technical and schedule risks, ended the 5X development and launched a new Falcon with the same cross section, Pratt & Whitney Canada engines and a range for a 2022 introduction.