Airman 1st Class Rachel Riley, a 366th Electrical Power Productions apprentice airman, checks to see if all her tools are accounted for Feb. 8, 2018, at Sheppard Air Force Base, Texas. The 366th train on a retired runway which was previously used in World War II. They train on mobile aircraft arresting systems which assist the aircraft in landing on rough terrain when runways aren't readily available or relevant at the time.