As mentioned on the Dutch Scramble Messageboard, A-10C 82-0660 from the 23rd Fighter Group, marked 76 FS, left Spangdahlem AB, Germany, with external fuel tank and two travel pods June 20, 2011.
According to the poster, it returned to the base. Anyone who knows it's next or final destination? Source
Anyone who took a picture? Some more related background info will be uploaded tomorrow.