6/29/2012 - U.S. Air Force Senior Airman Brooke Williams, 35th Maintenance Squadron aircraft structural maintenance journeyman, puts primer on the horizontal step of an F-16 Fighting Falcon aircraft at Misawa Air Base, June 28, 2012. The primer protects the metal on the aircraft from corrosion. (U.S. Air Force photo by Airman 1st Class Kia Atkins/Released)

6/29/2012 - U.S. Air Force Senior Airman Brooke Williams, 35th Maintenance Squadron aircraft structural maintenance journeyman, prepares to put primer on an F-16 Fighting Falcon at Misawa Air Base, Japan, June 28, 2012. The primer protects the metal on the aircraft from erosion. When an aircraft is grounded due to physical damage, it is the job of aircraft structural maintenance Airmen to get it repaired and back in the air. (U.S. Air Force photo by Airman 1st Class Kia Atkins/Released)

6/29/2012 - U.S. Air Force Staff Sgt. Jerry Rios, 35th Maintenance Squadron aircraft structural maintenance craftsman, installs trailing rivets on the horizontal edge of an F-16 Fighting Falcon at Misawa Air Base, Japan, June 28, 2012. Installation of the trailing edge rivets keeps components together and gives strength to the horizontal edge of the aircraft. (U.S. Air Force photo by Airman 1st Class Kia Atkins/Released)