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Air France Flight 447

Maryland company helping in search for missing Malaysia Airlines Flight 370

Nearly a month after Malaysian Airlines Flight 370 vanished, a team of Maryland engineers detected the pings from a flight data recorder that narrowed the search area to a more manageable yet still vast swath of the Indian Ocean.

Working from an Australian warship involved in the search, a crew of nine from Phoenix International in Prince George's County deployed a U.S. Navy listening device to the depths of the ocean in the hunt for a signal from the doomed jetliner's black box. Tapped by the Navy to assist Malaysian, Chinese and Australian officials in the search, the team and their equipment had flown from an office and warehouse in Largo nearly two weeks earlier.