The National Transportation Safety Board determined that the flight instructor's inadequate planning likely caused the crash especially because he knew about icy conditions and that the aircraft did not have anti-icing equipment. The plane was flying from Des Moines to Madison when it stalled and crashed into a field near the runway.
In a different lawsuit, the family of a woman who died in a commuter plane crash three years ago has settled its wrongful death lawsuit. The family alleged that the crash was caused by carelessness on the part of American Airlines and the company that operated the plane. Thirteen people died in the crash, which was blamed on pilot error, poor professionalism and fatigue.

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The plaintiffs alleged that the FAA's employees were negligent in not differentiating between two planes with the same call sign ending and for not recognizing that the wrong plane acknowledged the order.
It is not just people in the plane who can be injured by plane crashes. When planes crash near cities and towns, those on the ground can suffer serious injuries as well. When Yankee pitcher Cory Lidle's plane crashed into a building, residents of the building lost personal property and suffered emotional damage. At least one of the residents of the building filed a lawsuit against Lidle's estate.