Transcript for Investigators try to determine what caused plane to crash into frozen lake
Next to the emergency landing on an icy lake in Massachusetts. A small plane running into trouble, crashing into the water. The pilot scrambling on top of the plane as it sank. A witness grabbing a canoe. Rushing to get him before it was too late. Here's Mona Kosar Abdi. Reporter: Tonight, investigators in Halifax, Massachusetts, are trying to determine what caused this plane to crash into a frozen lake. We have an aircraft in the water. Reporter: The pilot pictured here, scrambling to stand on top of his sinking aircraft, Saturday, after surviving the emergency landing. He was panicking. He was worried he couldn't swim. Reporter: With first responders yet to reach the scene and the plane rapidly sinking, it was John Keegan, a bystander who witnessed the accident, that quickly jumped into action, grabbing his neighbor's canoe and paddling toward the stranded pilot. That was the hardest part, trying to break the ice to get to him. It was -- it took a while. Reporter: Keegan reached the man, who was standing chest-deep in icy water, just in time. And miraculously he was uninjured. The neighbors did an amazing job. They got to him very quickly. They were able to get him off the aircraft and get him to shore. Reporter: Crews have successfully pulled the plane out of the water. The scene of the crash just a mile from an area airport. As of now, the FAA and the NTSB have officially taken over the investigation. Tom?
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