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RI-VAP: Runway incursion - vehicle, aircraft or person - Any occurrence at an aerodrome involving the incorrect presence of an aircraft, vehicle or person on the protected area of a surface designated for the landing and take-off of aircraft.
- From Procedures for Air Navigation Services - Air traffic Management (ICAO DOC 4444), first included in April 2004.
- Excludes unprepared / natural landing sites.