U.S. Air Force Tech. Sgt. Jonathan, 33rd Maintenance Squadron Low Observable Corrosion Control Section noncommissioned officer in charge, helps Airman 1st Class Evan Green, 33rd MXS LO aircraft structural maintenance journeyman, dawn a protective helmet Feb. 21, 2019, at Eglin Air Force Base, Fla. Together, Mercier and Green have worked hard at making the Corrosion Compound to be a fully functional operation. (U.S. Air Force photo by Airman 1st Class Daniella Peña-Pavao)