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But if a drone hits the right spot — gets sucked into the engine or hits a tail rotor— the aircraft could crash and the pilots could easily be killed.

When the report final report was published, it concluded a tail rotor bearing seized, which in turn caused the helicopter to crash.

The tail rotor counteracts the torque of a helicopter's main rotor to ensure the aircraft does not spin out of control.

It concludes a tail rotor bearing seized, which in turn caused the crash.

The pilot’s pedals became disconnected from the tail rotor, investigators found, and it resulted in the aircraft making a sharp right turn which was “impossible” to control.