Airman 1st Class Jacob Parks, 436th Logistics Readiness Squadron material handling equipment maintenance apprentice, secures a chain to a Tunner 60K aircraft cargo loader/transporter bogie assembly April 1, 2014, at the MHE maintenance section on Dover Air Force Base, Del. Parks used the chain to hold the bogie assembly in place prior to removing the bogie bolts. (U.S. Air Force photo/Roland Balik)