Airman 1st Class Michael Kramer, an HH-60G Pave Hawk tactical aircraft maintainer with the 943rd Rescue Group, Davis-Monthan Air Force Base, Ariz., stays connected with the crew members of an HH-60G while prepping the aircraft for an exercise June 19, 2014. Tactical aircraft maintainers, more commonly known as "crew chiefs," coordinate the aircraft's maintenance and call in specialists when a problem is found. (U.S. Air Force photo/2nd Lt. Anna-Marie Wyant)