56-4362 was accepted by the USAF in 1957 as a C-123B and went to Vietnam in 1961 to fly as a low-level defoliant sprayer. In 1965, it was redesignated to UC-123B. At about the same time, it became a dedicated insecticide sprayer to control malaria-carrying mosquitoes, and in 1968 Fairchild converted it to a UC-123K. By then named "Patches" in view of almost 600 bullet hits in theatre, it returned to the US in 1972 via Afghanistan and Iran where it helped combat locust plagues. Lastly operated for AFRes as a C-123K until retirement to the museum in 1980

This Provider on display at the National Museum of the USAF was accepted by the USAF in 1957 and saw extensive service in Vietnam as a 'Ranch Hand' sprayer (possibly the most ill-conceived and reckless program ever devised by the USAF). The aircraft took almost 600 hits in combat so was named 'Patches' for the damage repairs that covered it. In addition, seven of its crew received the Purple Heart for wounds received in the line of duty.