Preliminary data from an Egyptian airliner that plunged into the Mediterranean last month showed "messages of lavatory smoke and avionics smoke," Egyptian investigators said Wednesday, NBC News reported.
The data, obtained from a recorder found this month by a naval survey vessel, "showed a consistency" with earlier messages from the Aircraft Communications Addressing and Reporting System, the investigators said in a statement.
Those messages suggested the possibility of smoke or fire below the cockpit's floor. All 66 people on board were killed.
After takeoff at Charles de Gaulle Airport in Paris, the statement said, the device continued recording until an "accident" at 37,000 feet.