The MI 09 double-decker trains, which entered service on 5 December 2011, replaced all MS 61 and MI 84 trains on RER A, as part of a works programme to increase passenger capacity and replace life-expired infrastructure.
Once all MS 61 and MI 84 trains were withdrawn from service, all trains on the RER A were double-decker (MI 2N "Altéo" and MI 09).

In 2014, the RATP appointed Veolia Environment to dismantle and recycle the MS 61 units that were part of the second refurbishment programme, plus two additional cars.
Veolia dismantled these trains at a specialised facility at Torvilliers, because the trains contained hazardous materials such as asbestos.

In 2010, the RATP selected one unit for preservation at Villeneuve-Saint-Georges: the selected unit was not part of the second refurbishment programme, and retains the original front ends and the "Île-de-France" livery.
The MI 09 double-decker trains, which entered service on 5 December 2011, replaced all MS 61 and MI 84 trains on RER A, as part of a works programme to increase passenger capacity and replace life-expired infrastructure. Once all MS 61 and MI 84 trains were withdrawn from service, all trains on the RER A were double-decker (MI 2N "Altéo" and MI 09).
In 2014, the RATP appointed Veolia Environment to dismantle and recycle the MS 61 units that were part of the second refurbishment programme, plus two additional cars. Veolia dismantled these trains at a specialised facility at Torvilliers, because the trains contained hazardous materials such as asbestos.
In 2010, the RATP selected one unit for preservation at Villeneuve-Saint-Georges: the selected unit was not part of the second refurbishment programme, and retains the original front ends and the "Île-de-France" livery.
MS 61