DE-ICING DUTY A crane operator from the 721st Aircraft Maintenance Squadron on Ramstein Air Base, Germany, de-ices a C-5 Galaxy, Dec. 7, 2010. The C-5 is from the Mississippi Air National Guard. Aircraft de-icing is a process in which liquid solutions are sprayed onto an aircraft during the winter's chill to both defrost and prevent future precipitation from freezing. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 413893-S-PBF58-537.jpg Photo Gallery