Tan Son Nhat air traffic control lost contact with aircraft for 18 minutes: officials

By Trung Hieu - Mai Ha, Thanh Nien News

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It is the second time in less than a year that Ho Chi Minh City air traffic controllers have lost contact with aircraft. Photo: Doc Lap It is the second time in less than a year that Ho Chi Minh City air traffic controllers have lost contact with aircraft. Photo: Doc Lap

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Air traffic control officers at Ho Chi Minh City’s Tan Son Nhat Airport lost contact with aircraft for 18 minutes on Tuesday morning, forcing incoming pilots to circle or land at nearby airports, the aviation authority said.
The incident occurred at 7:47 a.m., the Civil Aviation Administration of Vietnam said on Tuesday afternoon.
Six aircraft had to fly around and wait for landing permissions while another had to land at another airport. Flights departing from the airport were delayed, the agency said.
It blamed the incident on interference to radio frequencies, adding that an investigation into the case is ongoing.
An official from the agency, who wished to go unnamed, said this is the first time Tan Son Nhat has had such an incident. He said that it was “less serious than the blackout last November.”
Last November, Tan Son Nhat Airport's air traffic control tower experienced a 90-minute blackout, affecting nearly 100 flights.
Following investigations showed that Le Tri Tinh, chief technician in charge of the power supply at the control tower, caused a malfunction to its uninterruptible power supply (UPS) devices.

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