approved to fly the 777. korean culture would not have allow allowed him to speak up and say he wanted to go around with superiors in the cockpit. he also admitted he was very nervous flying into san francisco that day because the automatic glide slope, which guides them in, was out of action. although, there was a back-up system available to the crew. so really a confluence of factors here. training, aptitude, culture, technical factors. two people died in the crash, you ll recall. one teenage girl died after being hit by an arriving fire engine. the airport authority is also a part of this investigation, looking at what they could have done better. back to you. all right, tom. thanks so much. i want to get this on the air. this is from our kelly o donnell coming in from washington, d.c. regarding the chief of staff for senator lamar alexander. currently right now he s been put on administrative leave without pay because he s involved, the chief of staff for
road. reporter: straight in her path, a gmc truck had rear-ended a tractor-trailer, touching off the deadly chain reaction crash. the girls bus landed in the pickup truck. the boys bus hit the girls . the force of that attack. propelled one bus into the air and on to the pickup. one teenage girl was killed along with the driver of that pickup truck. helicopters airlifted the most seriously injured to area hospitals that quickly filled with worried parents. i just want to say i m very thankful that i m taking my child home today. reporter: it is unclear whether the school buses had seat belts despite tough new safety standards. the national traffic safety administration doesn t require school districts to install them on large buses. those new standards do require higher seat backs and more padded that offer good protection. on facebook prayers for the family of their schoolmates and those injured on a day that was supposed to be a celebration. students here are getting ready fo