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Emirates Flight 407 was a scheduled international passenger flight operated by Emirates from Auckland to Dubai with a stopover in Melbourne, operated by an Airbus A340-500 aircraft. On 20 March 2009, the flight failed to take off properly at Melbourne Airport, hitting several structures at the end of the runway before climbing and then returning to the airport for a safe landing. Although no fatalities or injuries resulted, damage to the aircraft was severe enough for the event to be classified by Australian Transport Safety Bureau as an "accident". It was subsequently determined that a data-entry error resulted in insufficient engine thrust during take off. It has been described "as close as we have ever come to a major aviation catastrophe in Australia" by aviation officials.
Aircraft have different ways to take off and land. Conventional airplanes accelerate along the ground until reaching a speed that is sufficient for the airplane to takeoff and climb at a safe speed. Some airplanes can take off at low speed, this being a short takeoff. Some aircraft such as helicopters and Harrier jump jets can take off and land vertically. Rockets also usually take off vertically, but some designs can land horizontally.
On 21 July 2017, a Boeing 737-800 belonging to and operated by Sunwing Airlines Inc. and operating as Thomson Airways Flight 1526 from Belfast International Airport and bound for Corfu, Greece with 185 people aboard, suffered a "serious incident" during takeoff, colliding with a runway approach light during departure. The incident was investigated by the Air Accidents Investigation Branch and determined to be the result of an incorrect temperature input into the aircraft's flight computer resulting in underperformance at take-off. The area beyond the runway and the terrain beyond were largely unobstructed, and the aircraft eventually climbed away undamaged. The remainder of the flight to Corfu was uneventful. The "serious incident" at take-off was realized and reported when airport staff subsequently observed minor ground damage. The investigation report concluded that the crew could not reasonably have been expected to recognize the anomalously low speed sooner or intervene more effectively. The report listed several examples of aircraft underperformance at takeoff, reviewed the history of relevant industry efforts, and recommended that a Takeoff Acceleration Monitoring System and associated certification standards should be developed without further delay.
References
- ↑ Brown; Abbasi (2009-04-23). "Takeoff performance monitoring systems, technology, certificatability and operability status". National Research Council Canada. doi: 10.4224/21268868 .
- 1 2 3 Benard, Bart (2019). "Take-Off performance incidents: do we need to accept them or can we avoid them?" (PDF). ISASI Technical Papers.
- ↑ Hoare, Steve (2019). "Erroneous takeoff performance: Why the past is still highly relevant today" (PDF). ISASI Technical Papers.
- ↑ Middleton (March 12, 1996). Airplane takeoff and landing performance monitoring system. NASA (Report). hdl:2060/20080005969.
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