Runway incursion involves an aircraft , and a second aircraft , vehicle , or person . It is defined by ICAO and the U.S. FAA as " 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 . " Runway excursion is an incident involving only a single aircraft , where it makes an inappropriate exit from the runway . This can happen because of pilot error , poor weather , or a fault with the aircraft . " Overrun " is a type of excursion where the aircraft is unable to stop before the end of the runway . An example is Air India Express Flight 812 in Mangalore , India in 2010 . Further examples can be found in the overruns category . Runway excursion is the most frequent type of landing accident , slightly ahead of runway incursion . For runway accidents recorded between 1995 and 2007 , 96 % were of the ' excursion ' type
Air India Express Flight 812
Air India Express Flight 812
Runway safety