U.S. Air Force Airman 1st Class John Somerville, 28th Aircraft Maintenance Unit crew chief, performs a visual inspection on the landing gear of a B-1B Lancer April 5, 2016, at Dyess Air Force Base, Texas. The tires and wheels of an aircraft, like your average car, must be inspected for general wear-and-tear in order to be maintained properly. (U.S. Air Force photo by Senior Airman Alexander Guerrero/Released)