One of six ex Portugese Noratlases due to go to Mozambique following their retirement from FAP service in the mid 1970s. 6412 was overhauled by OGMA at Alverca and given the Mozambique serial C9-ARD but problems, allegedly to do with finance, meant that the aircraft was never delivered and was instead allocated to the Museo do Ar. It has been present in the storage area at Alverca since 1983 and is still present in 2021.