Helicopter Warning System:
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The helicopter starts and flies away
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Helicopter flies
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Fastening, unfastening the seat belt in a
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Helicopter Warning System
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Helicopter approaching and hovering
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Shuts down, Helicopter lands
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Helicopter takes off
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Helicopter expects jammed
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Helicopter flies slowly
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Helicopter shuts down
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Helicopter engine malfunction signal
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Lands and flies away, A helicopter approaches
★★★★★