Regular subway service resumed on the E, F, M and R lines Monday morning after workers cleared the the tracks and made repairs in the Queens tunnel where a train derailed Friday, the MTA said.
Normal service on the lines resumed at 5 a.m. Monday following a partial service restoration since Friday's F train derailment, which injured 19 and stranded hundreds.
A rail snapped and caused six cars of a Manhattan-bound F train to leave the tracks on Friday. The rail that broke was manufactured in the U.S. in November and installed in March. The other rails from that shipment will be tracked down and inspected, according to the MTA.
There is no signal switch in the area. The train's operator and conductor were tested for drugs and alcohol, but results were not immediately known.
Four remaining subway cars on the eight-car train were removed Saturday from the tunnel between the Jackson Heights-Roosevelt Avenue station and Queens Plaza.