>> riordan's family devastated. jennifer's vibrancy fashion and love infused her community and reached across her country. her impact and everything and everyone she touched can never be fully measured. >> joining us in philadelphia. where does the investigation stand? >> well, anderson, late tonight word from the federal aviation administration that the next two weeks they will be requiring that aircraft carriers really focus or some of the carriers focus on the engines of the planes. and it's the same model that was on this plane that was affected during yesterday's incident. of course the prevailing theory for investigators with the national transportation safety board is that one of those fan blades was detached from the engine setting off this catastrophic chain of events. it's extremely important that authorities this essence use ultrasonic equipment to look for potential signs of metal fatigue. as we heard tonight in what is expected to be the last press