Baiyun Tower, This is china 252, preflight check on 118.1, how do you read me over?
Baiyun Tower, This is china 252, preflight check on 118.1, how do you read me over?
白云塔台，这是中国252，飞行前检查118.1，你听我怎样，回答？
Baiyun Tower, This is china 252, preflight check on 118.1, how do you read me over?
白云塔台，这是中国252，飞行前检查118.1，你听我怎样，回答？