Spc. Ashtyn Zimmerman trims wire from a D-Ice Box to prevent frost on UH-60 rotor blades at Corpus Christi Army Depot where she can practice avionics, Nov. 9, 2017. She and the other Utah National Guard members from D Company, 2-211th General Support Aviation Battalion, are preparing for an upcoming deployment this month with the kind of helicopter maintenance practice that only the Corpus Christi Army Depot could provide.