Liquid oxygen keeps mission running
SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Kyle Coates, 52nd Logistics Readiness Squadron hydrant operator, reads a checklist while Staff Sgt. Celso Velez, NCO in charge of cryogenics, turns the valve on the liquid oxygen tank to build pressure during the issuing of oxygen here Jan. 17. The cryogenics shop supplies the cargo planes with oxygen ensuring the planes are mission ready. (U.S. Air Force photo / Senior Airman Christopher Toon)