Features

Chilled for takeoff, LOX in flight

Photos by Staff Sgt. Joshua Crossman
521st Air Mobility Operations Wing
March 28, 2025
Staff Sgt. Terry McGivern, a 726th Air Mobility Squadron heavy integrated avionics craftsman, pushes a liquid oxygen servicing cart, in preparation for servicing a C-17A Globemaster III liquid oxygen converter on Ramstein Air Base, Germany, Feb. 26, 2025. Liquid oxygen is an extremely cold substance, boiling at -297 degrees Fahrenheit, and must be handled with extreme care.Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. James Sullivan, left, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, and Staff Sgt. Terry McGivern, a 726 AMS heavy integrated avionics craftsman, purge a liquid oxygen service hose before connecting it to a C-17A Globemaster III on Ramstein Air Base, Germany, Feb. 26, 2025. Purging servicing hoses prior to connecting to an aircraft reduces the amount of foreign object debris introduced into the aircraft’s liquid oxygen system. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Klay Osler)
Both Staff Sgt. James Sullivan, right, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, and Staff Sgt. Terry McGivern, a 726 AMS heavy integrated avionics craftsman, vent one of the three liquid oxygen converters, prior to servicing on a C-17A Globemaster III on Ramstein Air Base, Germany, Feb. 26, 2025. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. James Sullivan, left, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, and Staff Sgt. Terry McGivern, a 726 AMS heavy integrated avionics craftsman, purge a liquid oxygen service hose before connecting it to a C-17A Globemaster III aircraft on Ramstein Air Base, Germany, Feb. 26, 2025. Purging servicing hoses prior to connecting to aircraft, reduces the amount of foreign object debris introduced into the aircraft’s liquid oxygen system. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. James Sullivan, left, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, and Staff Sgt. Terry McGivern, a 726 AMS heavy integrated avionics craftsman, purge a liquid oxygen service hose before connecting it to a C-17A Globemaster III aircraft on Ramstein Air Base, Germany, Feb. 26, 2025. Purging servicing hoses prior to connecting to aircraft, reduces the amount of foreign object debris introduced into the aircraft’s liquid oxygen system. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. James Sullivan, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, ensures a valve is closed on a liquid oxygen servicing cart prior to repositioning it next to a C-17A Globemaster III. on Ramstein Air Base, Germany, Feb. 26, 2025. Liquid oxygen is an extremely cold substance, boiling at -297 degrees Fahrenheit, and must be handled with extreme care. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. Terry McGivern, a 726th Air Mobility Squadron heavy integrated avionics craftsman, don personal protective equipment prior to carrying out liquid oxygen servicing on a C-17A Globemaster III on Ramstein Air Base, Germany, Feb. 26, 2025. Liquid oxygen is a very cold and dangerous substance, requiring personnel to wear several pieces of specialized PPE to protect from severe skin and eye irritation as well as frostbite. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. James Sullivan, left, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, and Staff Sgt. Terry McGivern, a 726 AMS heavy integrated avionics craftsman, don personal protective equipment prior to carrying out liquid oxygen servicing on a C-17A Globemaster III on Ramstein Air Base, Germany, Feb. 26, 2025. Liquid oxygen is a very cold and dangerous substance, requiring personnel to wear several pieces of specialized PPE to protect from severe skin and eye irritation as well as frostbite. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
Staff Sgt. James Sullivan, a 726th Air Mobility Squadron C-17A Globemaster III crew chief, ensures a valve is closed on a liquid oxygen servicing cart prior to repositioning it next to a C-17A Globemaster III on Ramstein Air Base, Germany, Feb. 26, 2025. Liquid oxygen is an extremely cold substance, boiling at -297 degrees Fahrenheit, and must be handled with extreme care. Liquid oxygen has many applications onboard aircraft such as breathing oxygen for aircrew and passengers in emergency situations, High Altitude Low Opening operations, and Aeromedical Evacuation purposes. (U.S. Air Force photo by Staff Sgt. Joshua T. Crossman)
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