CAIRO: Search teams on Friday recovered the second flight recorder of an EgyptAir plane from the bottom of the Mediterranean that could prove vital in establishing the cause of the crash.

Flight MS804 from Paris to Cairo disappeared from radar screens in the eastern Mediterranean last month with 66 people on board, and a vast search operation has since scoured swathes of sea off Egypt’s northern coast.

Egyptian investigators said search teams managed to recover the Airbus A320’s flight data recorder — which gathers information about the speed, altitude and direction of the plane — a day after they retrieved its cockpit voice recorder.

The data recorder, which experts see as a vital part of the probe, was found in several pieces, according to investigators.

It was not immediately clear how much of its data would be useable, but Cairo’s civil aviation authority said on Thursday that salvage experts had managed to retrieve the voice recorder’s crucial memory unit despite extensive damage to the black box.

“The flight data recorder was also retrieved in several stages but the vessel equipment managed to pick up the memory unit which is considered as the most important part,” France’s BEA air safety agency, which is assisting the crash probe, said in a statement.

The voice recorder was due to be transferred from the port city of Alexandria to Cairo, where Egyptian investigators supported by French experts and representatives of manufacturer Airbus will analyse its contents.

BEA said it had dispatched an expert to Cairo to assist the probe.

The cockpit voice recorder keeps track of up to two hours of conversation and other sounds in the pilots’ cabin, but also ambient noise within the aircraft.

Published in Dawn, June 18th, 2016