WASHINGTON – Buses manufactured over the past two decades by Motor Coach Industries (MCI) are the object of a federal investigation by the National Highway Traffic Safety Administration into whether drives shafts can dislodge during operation and cause bus operators to lose control of the coach.
The investigation is focusing on 4,000 MCI D-Series buses with a steerable rear axle and manufactured between 1992 and 2012.
The Associated Press reports that the loss of a drive shaft is thought to have caused two fatal crashes.
FirstGroup America, which operates Greyhound, alleges that several drive shafts became dislodged from MCI buses over the past two years, causing drivers to lose control.