AC 150/5210-20, Ground Vehicle Operations on Airports, 31 ...

Incursion–any occurrence at an airport involving an aircraft, vehicle, person, or object on the ground that creates a collision hazard or results in loss separation with an aircraft taking off, intending to take off, landing, or intending to land. Jet Blast–jet engine exhaust or propeller wash (thrust stream turbulence). ................
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