In the June 16, 2016 Washington Post news article A rare, risky mission is underway to rescue sick scientists from the South Pole difficulties of flying in and out of the south pole in winter are discussed. The article describes an earlier emergency evacuation in April of 2001:
The replacement doctor for the station disembarked, and the ailing Shemenski clambered onto the plane. But as they started up the engines, the crew realized they couldn't take off. The Twin Otter's skis had stuck to the ice beneath them, and the grease on the wing flaps had frozen them in the fully extended position. While the station workers hacked at the ice on the skis, the plane's mechanic jerry-rigged the controls to allow it to take off. It was one of the longest, slowest take-offs any of them had ever attempted, but eventually, they were in the air.
How did the jerry-rigging of the controls of the De Havilland Twin_Otter allow it to take off from the south pole in winter with its flaps fully extended because of the frozen wing flap grease?
Is there a better description of the problem and the actual solution that was implemented?
note 1: According to the article, the current rescue mission can be monitored at https://flightaware.com/live/flight/CGKBO
update: apparently this hasn't actually been the case.
note 2: The article also says there are actually two planes involved in the rescue mission.
Two small bush planes are flying to the South Pole this week to evacuate workers at the Amundsen-Scott research station — a feat rarely attempted during the middle of the Antarctic winter.