Cook Performs Phase Two Inspection
Airman 1st Class Arr’tez Cook, 69th Maintenance Squadron aerospace ground equipment apprentice, checks the self generating nitrogen serving cart for leaks on May 7, 2014, at Grand Forks Air Force Base, N.D. Cook performs phase two inspections daily by checking wire components, bolts, screws and washers on equipment. (U.S. Air Force photo/Senior Airman Xavier Navarro)