Staff Sgt. Dane Devlin, a crew chief with the 801st Special Operations Aircraft Maintenance Squadron, holds a de-ice boot onto a CV-22 Osprey while another crew chief screws it in at Hurlburt Field, Fla., Sept. 29, 2016. A de-icing boot is an ice protection system installed on aircraft surfaces to perform mechanical de-icing on aircraft in flight. ( Air Force photo by Airman 1st Class Joseph Pick)

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Keywords: 801st, air, aircraft, chief, commando, crew, cv-22, maintenance, operations, osprey, soamxs, special, squadron, tiltrotor, turboprop