scrapping of d class locomotives commenced as early as 1927 when d 712 was wrecked, followed by d 535 in 1928. a full 20 engines (including the newest of the fleet, d 1052) were scrapped in 1929 as newer k and n class locomotives took over branch line goods services and petrol electric rail motors started to replace mixed trains and locomotive-hauled branch line passenger services. the unrebuilt saturated steam d class locomotives were the first to go, and by 1951 no fewer than 120 had been scrapped.