sank, water hadn't started coming inside in sufficient quantity to trigger these transmitters to come on. and perhaps by the time the water came in, the aircraft was sinking, therefore the frequencies they were transmitting on the signals weren't strong enough to reach the satellite. i mean, these are the types of conclusions and the analysis that investigators will be placing on this information now. but the source i talked to said it was odd. those were his words. it was odd that none of these four transmitters had come on, erin. >> nick, thank you very much. with 107 very important reporting coming out of kuala lumpur. richard quest is with me along with aviation analyst arthur rosenberg. let's just start with the emergency locators because that's what nick finished his reporting on. they didn't activate. so obviously that could mean a controlled landing, as he said. it could also mean they were manually turned off. that even possible that you could manually disable those or not? >> the location of the elts.