Scandinavian Airlines Flight 751 was a regularly scheduled Scandinavian Airlines passenger flight from Stockholm, Sweden to Warsaw, Poland via Copenhagen, Denmark. The McDonnell Douglas MD-81, registration OY-KHO, was piloted by Danish captain Stefan G. Rasmussen and Swedish first officer Ulf Cedermark. On 27 December 1991, ice had collected on the wings' inner roots (close to the fuselage) before take off, which broke off and was blown/sucked into the engines as the aircraft became airborne on takeoff. After both engines failed, the pilots were forced to make an emergency landing in a field near Gottröra, Sweden. All 129 passengers and crew aboard survived.The incident is known as the Gottröra crash or the Miracle at Gottröra in Sweden.AircraftThe aircraft was a McDonnell-Douglas MD-81, registered OY-KHO, serial number 53003, line number 1844. It made its first flight on March 16, 1991 and was delivered soon after to SAS on April 10, 1991. At the time of the accident, the aircraft had only been in service for 9 months. It was fitted with two Pratt & Whitney JT8D high bypass turbofan engines.AccidentThe aircraft had arrived from Zürich the previous evening and was parked overnight at temperatures of around 0 to 1 °C. About of flight-chilled very cold fuel remained in the wing tanks. Because of this, clear ice had formed on the upper side of the wings, but was not detected. The aircraft was de-iced with of de-icing fluid, but not checked afterwards for remaining ice by the de-icing personnel.