Explainer-What do we know about flydubai flight 1073?

LONDON, Oct 2 (Reuters) - Here is what we know, and don't know, about the reported attempt by the copilot of flydubai flight 1073 to crash the plane on September 30 before it landed safely in Saudi Arabia.WHAT HAPPENED TO THE PLANE?The flight, carrying more than 170 mostly Israeli passengers and…