BANGOR — A Pittston man pleaded guilty Tuesday to theft of federal pension funds, by continuing to receive retirement payments even after he returned to work, according to the U.S. Department of Justice.

Gerald E. Bailey, 68, retired from Springfield Terminal Railway in 2004, began receiving his pension, then returned to work for Maine Eastern Railroad from 2007 to 2010, according to an affidavit filed by Gail Fisk Malone, assistant U.S. attorney. To avoid detection, Bailey used another person’s name and Social Security number on his time cards.

He received $83,398 in pension funds that he was not entitled to receive, according to the department.

Bailey, who will be sentenced later, faces up to 10 years’ imprisonment, three years of supervised release and a $250,000 fine. The investigation was conducted by the Railroad Retirement Board, Office of Inspector General.