SNCF Class BB 27300 the number carried on the locomotive is prefixed with the number 8, to denote the unit as belonging to the Île-de-France division of SNCF. The first locomotives entered service in 2006 on suburban trains from Paris Montparnasse railway station. Current deployment sees a total of 25 locomotives operating services from Paris-Montparnasse on trains to Dreux, Mantes-la-Jolie and Rambouillet. At Montparnasse they have displaced older SNCF Class BB 8500 and BB 25500 locomotives. A further 42 locomotives operate from Paris Saint-Lazare railway station on trains to Poissy, Mantes-la-Jolie, Pontoise, Gisors, and Ermont Eaubonne. At Saint-Lazare BB 8500 and BB 17000 locomotives
SNCF stronger 25,000 hp (18,600 kW) engine, and broke the world speed record for conventional railway trains, reaching . The SNCF has a remarkable safety record. After nearly 30 years in operation, SNCF’s TGV system has only experienced one fatal accident, during trials rather than regular operations. In 2011 SNCF in partnership with Keolis, unsuccessfully bid for the InterCity West Coast franchise. In April 2017 SNCF took a 30% shareholding in a joint venture with Stagecoach Group and Virgin Group to bid for the West Coast Partnership that will operate services on the West Coast Main Line from May 2019 and