The president of the Long Island Rail Road is stepping down from his position, a source told NY1 on Wednesday night.

Patrick Nowakowski is expected to leave his post Friday, the source said.

The commuter railway has been beset by numerous service complaints. A report by the state comptroller shows last year was the railroad's worst for on-time performance in 18 years and that January was its worst month in 22 years.

Nowakowski has been the president of the agency since 2014. He replaced Helena Williams.

Before he came to the LIRR, he had spent 27 years with the Southeastern Pennsylvania Transportation Authority (SEPTA).