The R14s ran on the Flushing Line until the arrival of the R33Ss and R36 World's Fairs in late 1963–early 1964. The R14s were then transferred to operate on other A-division routes before being retired and replaced by the R62s in the mid-1980s. The last R14 ran on December 10, 1984. All but two cars have since been taken off property to be scrapped; several cars lasted as training vehicles or work cars for many years. For example, eleven R14s were converted into R71 rider cars after retirement, but were ultimately replaced with R161s (R33s converted into rider cars) and subsequently reefed in 2009.