About 12:03 p.m., e.s.t., on April 20, 1979, National Railroad Passenger Corporation (Amtrak) passenger train No. 111 collided head-on with an Amtrak Plasser track machine at Edison, New Jersey. The track machine was destroyed, and the locomotive was heavily damaged. The lead truck of the passenger car behind the locomotive derailed. Seventy-one persons were treated for minor injuries, and one passenger and one onboard attendant were admitted to the hospital. Total property damage was about $353,600.