Crew Chief A 4th Expeditionary Fighter Squadron F-35A Lightning II pilot meets a crew chief in the U.S. Central Command area of operations, April 26, 2019. This was the first U.S. Air Force F-35 sortie operated in the Middle East. SHARE IMAGE: Download Image: Small (0 KB)| Medium (112.64 KB)| Full Size (0.75 MB) Tags: Air Force Photo By: Air Force Staff Sgt. Chris Thornbury VIRIN: 190426-F-XK483-1194C.JPG Photo Gallery