【简答题】PIL: A control SAS292 CTL: SAS292 A control PIL: SAS292 request clearance to 1 CTL: SAS292 cleared to 2 . Join 3 at 4 at 5 PIL: cleared to 6 via 7 , to 8 SAS292 CTL: SAS292 correct
【简答题】PIL: C control DLH721 CTL: DLH721 C control PIL: DLH721 B737, 1 , 2 , request clearance to cross 3 at 4 CTL: DLH721 cleared to 5 PIL: cleared to 6 , DLH721 CTL: DLH721 report 7 PIL: DLH721