Senior Master Sgt. Michael Kent, 732nd Airlift Squadron loadmaster scheduler, conducts egress training with Lt. Col. Elizabeth Costanza, 514th Aeromedical Evacuation Squadron flight instructor student, by demonstrating emergency escape procedures on the door of a C-17 Globemaster III aircraft here April 5. Aircrew members undergo refresher egress courses every three years to satisfy training requirements (U.S. Air Force photo/Senior Airman Chelsea Smith).