. >> reporter: safety expert "sully" sullenberger says the pilot's ability to control the landing wasrucial. >> they were able to keep the wing intact which is where the fuel tanks are, prevent a fuel spill, and prevent sparks from igniteing that. >> if you have to be a plane crash, that's the one to be in to tell you the truth the. >> reporter: national tpgs transportation safety board and faa are investigating what caused the mechanical failure. for "cbs this morning," omar villafranca, los angeles. >> a dramatic bus fire near boston, all of the nearly 50 people on board got out okay but check out what happened while a local tv news team covered last night's fire. >> traffic continues to go by and one lane of traffic -- oh my gosh! >> oh my goodness. >> wow. explosion blew the windows right aust that bus. passengers were heading from new york to boston on the mass turnpike when the fire broke out. >> so they got off, sent another bus, everybody was okay. >> yes. >> very quickly. >>> midsized suvs do not make the grade when it comes to certain front-end clithss. ahead, modelled that