Airmen conduct cabin pressurization
Airman 1st Class Joseph Roberds, 22nd Maintenance Squadron aircraft electrical environmental apprentice, and Staff Sgt. Kyle Burks, 22nd MXS electrical environmental craftsman, follow technical orders+ to pressurize the KC-135 Stratotanker Nov. 1, 2013, at McConnell Air Force Base, Kan. The Airmen provide routine checks on cabin pressurization, which is a necessity for aircrew flying at high altitude. (U.S. Air Force photo/Senior Airman Maurice A. Hodges)