A group of NASA and contractor workers from Kennedy Space Center and NASA centers participate in a flight crew evacuation drill.

A group of NASA and contractor workers from Kennedy Space Center and other NASA centers, along with the Department of Defense, participate in a flight crew evacuation drill, also referred to as the Mode II/IV Simulation, from Launch Pad 39B. During the exercise, an emergency condition during launch countdown was simulated and participants did their parts to perform an emergency egress of the flight and ground crew. Fire Rescue and Closeout Crew workers transported the flight and ground crews to a triage site. Simulated injuries were treated and those with serious injuries were evacuated by helicopter to local hospitals. Photo credit: NASA/Jim Grossmann