Note: Paint shop records show as originally incorrectly painted up as 51-16573. Further confusion arose, as it should have been painted as 51-16467, which was to be an Air Force allocation, which actually went onto c/n 217.
• 51-16753 US Army #1004. L20 No. 5. Command A-2. Delivery date unknown. Built as L-20A and Re-designated U-6A in 1962.
• 51-16753 Operated in Korea.