Staff Sgt. Reid Johanna, 22nd Civil Engineer Squadron pavement and heavy machinery craftsman, utilizes a jack hammer during a spall repair on the flightline May 3, 2021, at McConnell Air Force Base, Kansas. Expedient spall repairs quickly repair holes, enabling aircraft to continue to safely land and depart from the flightline. (U.S. Air Force photo by Senior Airman Alan Ricker)