SJ aircrew conducts first ever fly-over with biofuel
SEYMOUR JOHNSON AIR FORCE BASE, N.C. – Senior Airman David Alexander collects a fuel sample here, March 31, 2011. Airman Alexander samples jet petroleum fuel before mixing it with hydro-treated renewable jet fuel. Airman Alexander, 4th Logistic Readiness Squadron fuel lab technician, is a native of Vacaville, Calif. (U.S. Air Force photo/Senior Airman Whitney Lambert) (RELEASED)