 After the end of SNCF operated steam in 1974, the 140 Cs became the last operating 'main line' French steam locomotives.140 C 287 pulled the last ever commercial steam train on French railway metals on 24 September 1975 between Gray and Sainte-Colombe.Four locomotives, 140.C.230, 140.C.231, 140.C.313 and 140.C.314 were, thanks to their general good condition, chosen by the CFTA to form a reserve pool of engines.