Keeping the jets rollin’
SPANGDAHLEM AIR BASE, Germany – Max Baer, 52nd Equipment Maintenance Squadron aircraft tire mounter from Dairyland, Wis., applies grease to the bearing of an F-16 Fighting Falcon fighter aircraft July 18, 2013. The grease lubricates the bearing, creating less friction on moving parts and allowing more time to pass before maintenance must be performed again. (U.S. Air Force photo by Airman 1st Class Gustavo Castillo/Released)