The sound of the rotor blades faded in the distance.
They got to him before the rotor blade hit his arm.
But many said that before the craft fell, its three rotor blades shot off.
There was enough room behind the main rotor blades to accomplish that.
The right rotor blade hit ground and the plane flipped over, he said.
He strained his ears for the sound of rotor blades.
It could not shoot up without hitting the rotor blades.
"how many hours do you have on the rotor blade?"
"First, I want to have a closer look at those rotor blades."
Both came from his helicopter, just below its rotor blades.
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