"We had a big crash and I immediately started seeing water enter the plane. Passengers started to struggle to rescue themselves," Samuel said, describing the moments after the Precision Air flight to Bukoba plunged into the lake in northern Tanzania. In the hours and days after the accident, reports of survival and dramatic rescue efforts have started to emerge. Jackson dived into the water and managed to communicate with the pilots by signalling through the window, he told the BBC. By the time rescue workers reached the pilots, their air supply had run out and the pair were dead, authorities said.

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