One of the 1960 Stock trains was owned by LUL and remained in use as track recording train, running with a 1973 Stock centre trailer. It was overhauled at Eastleigh Works in 2019. The original 1960 track recording cars were scrapped because of asbestos contamination, and two of the retired motor cars were converted to replace them. However the Track Recording Train will be withdrawn from service and replaced by the Asset Inspection Train, which is formed by repainted 1972 Stock