In the whole process which starts from the taxing, then takeoff, till reaching the cruise altitude and the flight phase start from the descending from the cruise altitude till stopping at the parking apron.
C.
When holding at the apron while waiting for the startup instruction.
In the whole process which starts from the taxing, then takeoff, till reaching the cruise altitude and the flight phase start from the descending from the cruise altitude till stopping at the parking apron.
C.
When holding at the apron while waiting for the startup instruction.