A runway incursion is an incident where an unauthorized aircraft, vehicle or person is on a runway. This adversely affects runway safety, as it creates the risk that an airplane taking off or landing will collide with the object. It is defined by the International Civil Aviation Organization (ICAO) on April 27, 2006, 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.
The 1977 Tenerife airport disaster, the deadliest accident in aviation history, was the result of a runway incursion.
In October 2007, the Federal Aviation Administration dropped its own definition of "runway incursion" and adopted the above. The difference between the two was "that ICAO defines a runway incursion as any unauthorized intrusion onto a runway, regardless of whether or not an aircraft presents a potential conflict. For the FAA, an incident without an aircraft in potential conflict– such as an unauthorized aircraft crossing an empty runway– was defined as a 'surface incident' and not a runway incursion."
The Airport Surface Detection Equipment, Model X (ASDE-X) and the Airport Movement Area Safety System (AMASS) are computerized systems that are intended to alert air traffic controllers to the potential for a runway incursion.
Notable examples of runway incursion
- In the 1972 Chicago-O'Hare runway collision, North Central Airlines Flight 575 (a McDonnell Douglas DC-9) collided during its takeoff roll with Delta Air Lines Flight 954 (a Convair CV-880) while the CV-880 was taxiing across a fog-shrouded runway at O'Hare International Airport in Chicago, Illinois, killing 10 people and injuring 17.
- The 1977 Tenerife airport disaster happened when one of the aircraft involved, KLM Flight 4805 (a Boeing 747) initiated takeoff before it was supposed to and collided with another aircraft, Pan Am Flight 1736 (another Boeing 747). A total of 583 people lost their lives in the disaster - more deaths than in any other accident in aviation history.
- On 11 October 1984, Aeroflot Flight 3352, a Tupolev Tu-154B-1 hit maintenance vehicles on the runway attempting to land in Omsk, Russia. The ground controller allowed the workers to dry the runway during heavy rain and fell asleep on the job. 174 people aboard the aircraft were killed, along 4 people in the wrecked maintenance vehicles.
- 1994 TWA Flight 427/Superior Aviation Cessna 441, 22 November 1994: Cessna pilot error at Lambert-St. Louis International Airport. Pilot taxied to incorrect runway and was struck by departing TWA MD-80, 2 fatalities on the Cessna.
- On 16 November 1996, United Express Flight 5925 was landing at Quincy Regional Airport when the pilot of a Beechcraft King Air started to take off on an intersecting runway. As the field was uncontrolled, the United Express pilots inquired whether the King Air was clear of the runways. They received no response except for a call from a Piper Cherokee saying they were holding short. The King Air and United Express collided at the intersection of the two runways killing all 12 on board Flight 5925 and the pilot and passenger of the Beechcraft King Air.
- On 1 April 1999, an Air China Boeing 747, Flight 9018, taxied onto an active runway at Chicago's O'Hare International Airport during the takeoff of Korean Air Flight 36, another 747. Flight 36 averted a collision by taking off early, missing the Air China aircraft by 75 feet. There were 8 people on the Air China jet, and 379 on the Korean flight.
- 1999 T. F. Green Airport runway incursion, 6 December 1999: In low visibility at night, a United Airlines 757 turned down the wrong taxiway and taxied onto the active runway just as a FedEx Express 727 took off. No collision occurred.
- Linate Airport disaster, 8 October 2001: Scandinavian flight 686 collided on takeoff with a Cessna Citation registered D-IEVX that had turned onto the wrong taxiway, causing it to enter the runway.
- 2004 Indian Ocean tsunami aftermath, Banda Aceh 4 January 2005: water buffalo on runway caused ground collision which seriously delayed relief flights.
- On 9 June 2005, US Airways Flight 1170, a Boeing 737-300, nearly collided with Aer Lingus Flight 132, an Airbus A330 at Logan International Airport in Boston after both flights were given nearly simultaneous clearances for takeoff on intersecting runways. The US Airways flight kept its nose down on the runway for an extended amount of time to go underneath the Aer Lingus flight and avoid a collision.
- "FAA Adopts ICAO Definition for Runway Incursions", FAA news release, October 1, 2007
Deutsch Störung auf der Start- oder Landebahn ▪ Français Incursion sur piste ▪
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