Airman 1st Class Charles Gage, 2nd Maintenance Squadron electric and environmental section, replaces a phase reversal switch on a purge unit on Barksdale Air Force Base, La., Jan. 15. Purge units heat oxygen within liquid oxygen carts up to 220 degrees to clear it of contaminants. The E and E section maintains the electrical and life-support systems within B-52H Stratofortress bombers. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Senior Airman Timothy Moore, 2nd Maintenance Squadron electric and environmental section, makes adjustments to a component of a purge unit on Barksdale Air Force Base, La., Jan. 15. Purge units heat oxygen within liquid oxygen carts up to 220 degrees to clear it of contaminants. The E and E section maintains the electrical and life-support systems within B-52H Stratofortress bombers. (U.S. Air Force photo/Airman 1st Class Andrew Moua)