‘Wake turbulence’ cited as possible cause of Bek Air crash
The Bek Air crash in Kazakhstan last week may have been caused by a ‘wingtip vortex.’
The Fokker-100 plane crashed at Almaty Airport after losing height on take-off.
It crashed through a concrete fence and slammed into a two-storey building.
The airline says the wingtip vortex or wake turbulence, was a possible cause which came from a larger Airbus jet which took off just two minutes earlier.
Wingtip vortices are rotating air patterns left behind a wing and can linger for about three minutes.
This can impact the ability of a smaller plane to take off safely.
In suggesting the cause, Bek Air chief executive Nurlan Zhumasultanov indirectly laid the blame on the airport’s air traffic control for clearing its plane to take-off too early.
Fokker 100 aircraft have been temporarily grounded and Bek Air has halted operations pending a preliminary report which should be released on January 10.
Kazakhstan’s state-run ATC authority Kazaeronavigatsias said there was a 1-minute, 52-second gap between the take-offs, which is within standard regulations as both jet types are classed as medium sized.
It comes two days after Kazakhstan observed a national day of mourning for 12 people who died on the flight.
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