Searchers found the plane, a Twin Otter aircraft carrying three people, close to the summit of Mount Elizabeth in Queen Alexandra Range, in Antarctica.

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The ISSC has recently acquired a new Twin Otter aircraft, which will be brought into service later this month, bringing its fleet up to seven.

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The Twin Otter aircraft was flying from the South Pole to an Italian Antarctic base when its emergency beacon was activated at 10:00 GMT on Wednesday.

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Consultants suggested a Twin Otter, or similar sized aircraft, could be used to bring in 14, 500 passengers a year.

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