Konggar Airport in Tibet, one of the highest-altitude airports in China, was able to accommodate a Tibet Airlines wide-body Airbus 330 aircraft overnight for the first time, the airline announced Wednesday.

The 3,600-meter-high airport in Lhasa was able to accommodate the plane after the airline's technicians solved the problem of re-starting the aircraft's engine in a low air pressure environment after an overnight stay.

A new oxygen diffusion device has been designed to increase air supply during the engine ignition process, the airline said.

High-altitude airports (over 2,438 meters above sea levels) pose safety issues for pilots as low air pressure affects flight performance. All five airports in Tibet are classified as such.

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