This seemingly strange action is actually an important safety rule in the aviation industry, called “emergency readiness posture”.

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Illustration: Curly Tales

According to the European Aviation Safety Agency (EASA), take-off and landing are the two highest risk moments in a flight, accounting for more than 70% of serious aviation incidents.

Flight attendants place their hands under their thighs to help limit unconscious reflexes in the event of a collision or strong shaking. Instead of swinging their arms or holding on to their seats – actions that can easily cause injury – flight attendants keep their bodies stable and are ready to stand up quickly to evacuate passengers if necessary.

The International Civil Aviation Organization also emphasized that the position of placing hands under the thighs shows strict compliance with procedures and maintains a professional and calm image in front of passengers. This creates a positive psychological effect, helping passengers feel safer when the plane is shaking.

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Illustration photo: Skytech Aviation

Passengers, when taking off and landing, are advised to sit up straight, fasten their seat belts, place both feet firmly on the floor and press their backs against the seat to reduce shock. In case of emergency, they should lean forward, put their hands on their knees or hold their heads to protect their spine, limit injuries and increase their chances of survival.

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Source: https://vietnamnet.vn/vi-sao-tiep-vien-ngo-thang-lung-dat-tay-duoi-dui-khi-may-bay-cat-va-ha-canh-2443086.html