Airman 1st Class Alexander Mercado, 336th Training Support Squadron, aircrew flight equipment specialist, and Staff Sgt. Michael Brown, 336th TRSS, NCO in charge aircrew flight equipment, install a new canopy on the MC-4 Free Fall parachute system May 13, 2011, at Fairchild Air Force Base, Wash. (U.S. Air Force Photo/Tech Sgt. JT May III)