ARINC attempted to contact Flight 990 on SELCAL, also with no response.

林克试图联系990航班选择呼叫系统，也没有反应。

Please contact Li Tiemin, coach on take-off venue when you want to experience paragliding flight. The cost is 300RMB per person.

如欲体验滑翔伞飞行，请与起飞场地的教练李铁民联系。费用是每人300元。

The NTSB said Northwest flight 188, an Airbus A320, was flying from San Diego to Minneapolis and lost radio contact with controllers just before 7 pm local time when it was at 37, 000 feet.

NTSB称，西北航空公司188航班的空客A320飞机正从圣地亚哥飞往明尼阿波利斯，于当地时间下午7时与航管失去无线电联络，当时飞机的飞行高度为37 000英尺。

A clearly worried Walters used his CB radio to transmit a mayday call, which was picked up by operators on the ground who then maintained contact with him throughout the flight.

Walters真的担心起来，他用无线电发了呼救信号，地面接线员接到信号并自此和他一直保持联系。

The situation is very dynamic, so passengers expecting to travel from the impacted airports should contact their airlines to check whether their flight is operating.

形势在变化不断，因此要经过受影响的机场的乘客请与航空公司联系以确定所乘坐的航班是否飞行。