One of two black boxes of crashed China Airliner found

 China, March 23 (Reuters) -  Chinese searchers found one of two black boxes from a China Eastern Airlines (600115.SS) flight carrying 132 people. The plane crashed in forest-clad mountains on Wednesday the aviation regulator said.   

The device was severely damaged, and it was not immediately clear if it was the flight data recorder or the cockpit voice recorder, an official of the Civil Aviation Administration of China (CAAC) told a media briefing.   

Flight MU5735 was en route from the southwestern city of Kunming to Guangzhou on the coast on Monday when the Boeing 737-800 jet suddenly plunged from cruising altitude at about the time when it should have started its descent ahead of landing.   

Most of the jet appears to have disintegrated upon impact and no survivors have been found.   

The cause of the crash has yet to be determined, with aviation authorities warning that their investigation would be very difficult because of the severe damage to the aircraft.