Originally USAAF A-26B 44-34749 and civilianised as N4823E post WWII. Converted to B-26K standard by Hamilton Aircraft at Tucson, AZ., and delivered to the Brazilian Air Force in 1969 as 5174. Returned to the USA in September 1984 and registered as N4959K. New Certificate of Airworthiness issued in August 1985 as A-26C NL4959K "c/n 44-34749", and is still current as such on the USCAR at the time of posting.