Careening into a mountaintop just minutes from the runway, an American charter flight becomes the worst aviation disaster in Portuguese history. Resulting in a desperate investigation to determine how this tragedy occurred. However, with wreckage too damaged to test, the air crash investigators are led to dead ends. But there’s a glimmer of hope when the altitude alert, a device which warns the pilots when their approaching a preset altitude, is found to be intact..
Find out the disturbing discovery that follows in brand new episodes of Air Crash Investigation, Mondays at 9pm, on National Geographic UK.
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Igniting the explorer in all of us. National Geographic gets you closer to the stories that matter and past the edge of what's possible through groundbreaking storytelling. From the best and brightest scientists, explorers, photographers, and filmmakers, Nat Geo is the world's premium destination for science, exploration, and adventure.