Airman 1st Class Devin Lorenzi, 437th Aircraft Maintenance Squadron Aerospace Maintenance journeyman from Joint Base Charleston, S.C., logs into a computer to check operating instructions on board a C-17 Globermaster III, June 22, 2012. JB Charleston has 54 C-17’s. The 437th AMXS Aerospace technicians perform inspections on the aircraft to ensure they are ready for any mission. (U.S. Air Force photo/ Airman 1st Class Chacarra Walker)

Airman 1st Class Devin Lorenzi, 437th Aircraft Maintenance Squadron Aerospace Maintenance journeyman from Joint Base Charleston, S.C., tightens a screw in the air conditioning unit on a C-17 Globemaster III, June 22, 2012. JB Charleston has 54 C-17’s. The 437th AMXS Aerospace technicians perform inspections on the aircraft to ensure they are ready for any mission. (U.S. Air Force photo/ Airman 1st Class Chacarra Walker)

Airman 1st Class Devin Lorenzi, 437th Aircraft Maintenance Squadron Aerospace Maintenance journeyman from Joint Base Charleston, S.C., inspects a C-17 Globemaster III, June 22, 2012. JB Charleston has 54 C-17’s. The 437th AMXS Aerospace technicians perform inspections on the aircraft to ensure that they are ready for any mission. (U.S. Air Force photo/ Airman 1st Class Chacarra Walker)

Airman 1st Class Devin Lorenzi, 437th Aircraft Maintenance Squadron from Joint Base Charleston, S.C., replaces a lower hatch seal on a C-17 Globemaster III, June 22, 2012. JB Charleston has 54 C-17’s. The 437th AMXS Aerospace technicians perform inspections on the aircraft to ensure they are ready for any mission. (U.S. Air Force photo/ Airman 1st Class Chacarra Walker)

Airman 1st Class Devin Lorenzi, 437th Aircraft Maintenance Squadron from Joint Base Charleston, S.C., checks the tire pressure on a C-17 Globemaster III, June 22, 2012. JB Charleston has 54 C-17’s. The 437th AMXS Aerospace technicians perform inspections on the aircraft to ensure they are ready for any mission. (U.S. Air Force photo/ Airman 1st Class Chacarra Walker)