Causes of the accident
The biggest snowfall the pilots had seen. A non-recommended proportion of de-icing mix used on airplane. The layer of snow that accumulated on the wings after use the reverses to leave the parking. Have the system of anti-ice of the engines off and that freeze the inlet of the engine pressure sensor and caused a false reading of power in cockpit. But overall the unconsciousness of the captain to commit all these errors like not doing another de-icing knowing they had got snow on their wings and unfollowing the procedures.
Heroes of the accident
The police helicopter team of the city of Washington DC for the rescue of the survivors in the iced river. And Lenny who jumped into the iced river to rescue Priscilla Tirado to die frozen.
Crashes caused by maintenance errors
The flight of a McDonell-Douglas of Alaska Airlines in January of 2000 finished into the sea with 0 survivors. A bad maintenance for the Alaska Airlines engineers on the screwjack of the horizontal stabilizer caused the imposibility of control the aircraft. Another flight of Air Canada in June of 1982 landed emergency in Cincinnati after a fire into the cabin caused for a bad union and maintenance of the electric cables, died 23 people.
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| DEICING PROCESS |
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| ALASKA AIRLINES SCREWJACK |
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