The U.S. Navy has picked up signals from the flight data recorder, or black box, of an Indonesian passenger plane that crashed into the sea on New Year's Day with 96 passengers onboard. The U.S. Mary Sears located signals «on the same frequency of the black boxes associated with the missing airplane,» a statement issued by the U.S. Embassy in Jakarta said. It was unclear when the signals were detected. Adam Air Flight 574 disappeared more than three weeks ago in a storm off the Western coast of Sulawesi while on flying from the main island of Java, the Associated Press reported.