As motor power continued to be applied, the first three cars (two Budd 2200 units and a single Pullman-Standard 2000) were pushed further upwards, until they jackknifed and fell off the tracks.
As force was applied to the motors, the first three vehicles (two Budd 2200 units and a single Pullman-Standard 2000) were pushed upward until they jackknifed and fell off the tracks.