This comes after the US aviation regulator barred its carriers from the area until further notice.

此前，美国航空监管机构禁止其航空公司进入该地区，直到另行通知。

This is common in the US aviation market but can happen everywhere.

这在美国航空市场很常见，但在任何地方都可能发生。

The US aviation authorities say air traffic is getting back to normal after domestic flights were grounded for several hours because of a computer glitch.

美国航空当局表示，国内航班因计算机故障停飞数小时后，空中交通正在恢复正常。