On December 17, 1966, Lichte was transferred to the war theater in Vietnam as part of the US Army in the Pacific (USARPAC). On January 29, 1967, Lichte was assigned to the 57th Medical Detachment of the 68th Medical Group in the 44th Medical Brigade in the USARPAC in Vietnam as part of a Helicopter Ambulance division. He served as a Rotary Wing Aviator Unit Commander in this division. During his time in Vietnam, he supported ground forces in more than twenty-five air missions.
Tan Son Nhut Air Base, where the 57th Medical Detachment was stationed