CNN New Day December 4, 2013 11:03:00
A source, that they didn't work. >> we determined that the metro north mechanical department performed a proper brake test prior to the accident train leaving the station. and there were no anomalies noted. >> reporter: the federal rail administration is expressing serious concerns about metro north's recent series of accidents. in a letter to the head of the mta saying, four serious accidents in less than seven months is simply unacceptable. now, the engineer's union rep and his lawyer both say he's been in an emotional condition and state. his lawyer saying this was purely, purely an acciden...