10/20/2011 - Airmen from the 86th Aircraft Maintenance Squadron at Ramstein Air Base, Germany, move an engine maintenance stand into position to work on a C-130J Super Hercules engine during Operation Thracian Fall 2011, Oct. 18, 2011 in Plovdiv, Bulgaria. OTF11 is an off-station training exercise designed to enhance interoperability between U.S. and Bulgarian Air Forces as well as build partnerships with paratroopers from both. (U.S. Air Force photo/Senior Airman Stephen J. Otero)

10/20/2011 - Staff Sgt. John-Moses Robinson, 86th Aircraft Maintenance Squadron defensive systems technician, from Ramstein Air Base, Germany, moves an engine maintenance stand off the flight line during Operation Thracian Fall 2011, Oct. 18, 2011 in Plovdiv, Bulgaria. Thracian Fall is an off-station training exercise designed to enhance interoperability between U.S. and Bulgarian Air Forces as well as build partnerships with paratroopers from both. (U.S. Air Force photo/Senior Airman Stephen J. Otero)

10/20/2011 - Tech. Sgt. Ramiro Gonzalez, 86th Aircraft Maintenance Squadron propulsion systems mechanic, from Ramstein Air Base, Germany, holds a broken starter-control valve from a C-130J Super Hercules engine during Operation Thracian Fall 2011, Oct. 18, 2011 in Plovdiv, Bulgaria. OTF11 is an off-station training exercise designed to enhance interoperability between U.S. and Bulgarian Air Forces as well as build partnerships with paratroopers from both. (U.S. Air Force photo/Senior Airman Stephen J. Otero)

10/20/2011 - Airman 1st Class Joshua Wilson, 86th Aircraft Maintenance Squadron crew chief, from Ramstein Air Base, Germany, works on a C-130J Super Hercules engine during Operation Thracian Fall 2011, Oct. 18, 2011 in Plovdiv, Bulgaria. OTF11 is an off-station training exercise designed to enhance interoperability between U.S. and Bulgarian Air Forces as well as build partnerships with paratroopers from both. (U.S. Air Force photo/Senior Airman Stephen J. Otero)