5. Nolinor 737

She's the "Workhorse of the North," powering through the vast Arctic region, where conditions can turn deadly in seconds. Nolinor Aviation's 737-200 C is a combination cargo and passenger aircraft, delivering essential food, equipment, and workers to Meadowbank, the coldest mine on Earth. The gold mine depends on this super hauler four times a week, but common temperatures of minus 50 degrees often wreak havoc on the aircraft and her missions. Follow her on a typical job, which poses challenges that are anything but routine.