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Rogelio Guerrero, 502d Logistics Readiness Squadron Fuels Flight quality assurance specialist, examines a fuel sample for clarity and contaminants at Joint Base San Antonio-Lackland, Texas, Jan. 6, 2026. Visual inspections are one of several quality control measures used to verify the condition of incoming fuel before it enters the installation’s supply system. (U.S. Air Force photo by Jonathan R. Mallard)
260106-F-YD772-1199.JPG Photo By: Jonathan Mallard

JOINT BASE SAN ANTONIO, Texas - Rogelio Guerrero, 502d Logistics Readiness Squadron Fuels Flight quality assurance specialist, examines a fuel sample for clarity and contaminants at Joint Base San Antonio-Lackland, Texas, Jan. 6, 2026. Visual inspections are one of several quality control measures used to verify the condition of incoming fuel before it enters the installation’s supply system. (U.S. Air Force photo by Jonathan R. Mallard)


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