ADVANCE FOR MONDAY, APRIL 21 AND THEREAFTER - In this April 9, 2014 photo, airport manager Joseph Hedrick leans against an empty Great Lakes Aviation baggage cart with a retired cargo plane reflected in the window of Thief River Falls Regional Airport in Thief River Falls, Minn. Great Lakes, a small regional carrier, suspended its service in February to Thief River Falls, where employees and employers said the air service was a crucial link to the Minneapolis-St. Paul area and beyond. (AP Photo/Jackie Lorentz)