we're back covering the mystery of flight 370. i'm back with richard quest, our aviation expert here at cnn. also i'm joined live from irvine, california, aviation senior editor guy norris. i'm told you just had a chance to speak with a source at rolls-royce. and as we went to break i said to our audience that rolls-royce may hold key information being the maker of those engines of that 777. what have you learned? >> well, good morning. i've been trying to verify a little bit about what we heard overnight with the idea that the engine was in fact continuing -- both engines were continuing to transmit data down to the ground for an extended period beyond which it originally disappeared from the flight path. steve overmyer far rolls isn't actually confirming to me any of that. but it sort of indicates that perhaps there is something to