It's been nearly two weeks since a flaperon from Malaysia Airlines flight MH370 washed up on Reunion Island.
The find hasn't yet provided a definite answer as to how the plane came to be in the water, but it's been suggested it may have glided downwards with a soft impact, floating for a time before sinking in one piece.
As the speculation continues, there's news of another tragedy this morning – a plane with 54 people on board has crashed into a mountain in Papua.
The aircraft was part of a fleet operated by Indonesian airline Trigana Air that has been banned by the EU because of its poor safety record.
Mary Schiavo is a former US Department of Transportation inspector-general and aviation analyst.
Watch the video for the full interview.