SNCF Class CC 6500 deemed unsatisfactory for Amtrak's use. Thus, Amtrak favored the Rc4 design, which would serve as the basis for their EMD AEM-7. After testing was completed, X996 was returned to France, reverted to its pre-Amtrak appearance and specifications, and continued to operate on the SNCF. As with the remainder of the CC21000's, the CC21003 was rebuilt into a CC6500 in 1997. SNCF Class CC 6500 The SNCF Class CC 6500 is a class of 1.5 kV DC electric locomotives. The CC 6500 was, together with the and diesel CC 72000, the first generation of the 'Nez Cassé' family of locomotives and
Argentine State Railway companies in the country, operating a railway network of 6,617 km. By 1936 the railway network had been extended to 9,690 km. Most of the railway lines built by the Argentine state were metre gauge because of financial reasons. In 1937 the State company began to acquire some existing companies with the purpose of competing against British railway companies. In 1948 Argentine State Company (along with British and French companies) became part of Ferrocarriles Argentinos after nationalisation of the railway network, headed by then-President Juan Domingo Perón. Therefore, the Central Northern rail lines were added to General Belgrano Railway network