The rookie operator, Brittney Haywood, told investigators that she dozed off as the train approached the stopping area at the O'Hare International Airport station shortly before 3 a.m. on March 24, 2014. The train smashed through a bumping post at the end of the track at 23 mph and the first car was catapulted atop an escalator, injuring 33 of about 50 passengers on board and causing more than $11 million in damage, according to updated figures from the NTSB.