A former Boston trolley driver who authorities say was texting just before crash that injured more than 60 people may change his plea this week.

Aiden Quinn initially pleaded not guilty to a charge of gross negligence by a person in control of a common carrier. A change-of-plea hearing is scheduled for Friday.

Quinn's lawyer, James Sultan, said Quinn is considering changing his plea to guilty. The charge carries a maximum sentence of 2½ years.

Prosecutors have said that the 26-year-old Quinn admitted typing a text message to his girlfriend in the moments before his trolley crashed into the rear of another trolley in a downtown Boston tunnel on May 8, 2009.

Quinn was fired after the accident.