they heard. reporter: they re saying that the chinese ship deployed a black box detector into the water in the southern indian ocean and picked autopsy pulse signal, a ping. 37.5 killohertz. that s the same frequency emitted by the flight recorder. one of the air force planes spotted white floating objects in that search area. malaysian authorities say they re trying to verify this report. military and civilian planes and ships from several nations, including china, australia, britain and the u.s., are searching parts of the indian ocean where that plane may have gone down. arthel? there is a healthy dose of skepticism about this right now. correct? absolutely. first of all, because it came from chinese state-run media reports. instead of from the international coordinator of this search. air chief marshal. houston said today that he had been advised of the chinese