Maintaining the mission

Senior Airman Zachary Anderson, 911th Aircraft Maintenance Squadron crew chief, prepares to service the liquid oxygen of a C-17 Globemaster III at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, March 10, 2020. Liquid oxygen is routinely serviced to ensure aircrew and potential passengers have breathable oxygen while flying. (U.S. Air Force photo by Joshua J. Seybert)

Senior Airman Zachary Anderson, 911th Aircraft Maintenance Squadron crew chief, attaches a liquid oxygen hose to a C-17 Globemaster III at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, March 10, 2020. Liquid oxygen is routinely serviced to ensure aircrew and potential passengers have breathable oxygen while flying. (U.S. Air Force photo by Joshua J. Seybert)

Senior Airman Zachary Anderson, 911th Aircraft Maintenance Squadron crew chief, observes excess liquid oxygen bleed-out from a C-17 Globemaster III at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, March 10, 2020. Liquid oxygen is routinely serviced to ensure aircrew and potential passengers have breathable oxygen while flying. (U.S. Air Force photo by Joshua J. Seybert)

Senior Airman Zachary Anderson, 911th Aircraft Maintenance Squadron crew chief, prepares to service the liquid oxygen of a C-17 Globemaster III at the Pittsburgh International Airport Air Reserve Station, Pennsylvania, March 10, 2020. Liquid oxygen is routinely serviced to ensure aircrew and potential passengers have breathable oxygen while flying. (U.S. Air Force photo by Joshua J. Seybert)