Smoke was detected in the cabin in the final moments before EgyptAir flight MS804 crashed, according to reports on The Aviation Herald.
The air industry website mentions three independent sources which passed on data from the Airbus 320’s real-time reporting service ACARS. It indicated smoke in the toilet, followed by the electronics before communications were lost. Though experts cautioned that this does not necessarily mean a fire occurred.
Adding to the mystery, a large oil slick has been spotted by European Space Agency satellites in the area where the plane disappeared with 66 people aboard, though there is no confirmation it is from the flight.