of flight 370. aviation sources in malaysia are giving cnn a more detailed analysis of the final flight path taken by the missing jetliner. we're also confirming the plane was equipped with four emergency locator transmitters designed to send a signal to a satellite in the event of a crash or contact with water. now, no one can explain why those elts apparently failed to activate. tamina udas is live from kuala lumpur this morning. good morning. >> reporter: good morning, alison. we're getting information in bits and pieces, but what we know right now is this particular plane had four ltss in this plane, one in the rear door, in the front door, in the cockpit and the fuselage. so, really, one of those should have gone off, but they didn't, and a lot of people here are asking why. this question was posed to authorities here as well just a few days ago, and they said that