Tech. Sgt. Derek Spencer (left), Aircraft Structural Maintenance Craftsman 374th Maintenance Squadron Fabrication Shop, oversees Airman 1st Class Isaiahlee Elizardo (right), Aircraft Structural Maintenance Journeyman 374th Maintenance Squadron Fabrication Shop, as he prepares to sand a CV-22 blade inside a Retractable Painter Containment System at Yokota Air Base, Japan, August 11, 2020. The containment system allows for maintenance on site rather than sending blades to an alternate location with a permanent facility. CV-22 blades require refurbishment every year to avoid degradation and maintenance errors. (U.S. Air Force Photo by Staff Sgt. Ryann Holzapfel)