we begin with news on that southwest airline flight 345 crash landing at new york's laguardia airport on monday. right now, federal investigators are saying the plane handed nosewheel first. this is the first real clue we've gotten as to why the plane's landing gear collapsed, obviously as you know, planes usually land on the back, not the front. let's get to aviation correspondent rene marsh. the investigation is still going on. does this open the door to pilot error? >> we spoke, erin, to a few pilots when we just got this information a short time ago. the pilots we spoke to say it is too early to know for sure why the plane landed this way but they say it does suggest human error could have played a role. here's what we do know. this plane landed nose gear first. then the main gear. but in a successful landing. it is supposed to be maybe gear and then the nose gear. that's because the nose gear is