1988, I'm pretty sure.
On the subject of MH370, I doubt Julios' theory, as the US have no reason to keep the passengers and pilots on the island in secret. While the pilot may have wanted to fly there, I doubt the pilot managed and crashed into the sea. I'm using 'the pilot' loosely, I'm unsure as to if or which pilot did this. If the pilot with the simulator was the one who commandeered and crashed it, would he not disassemble the 777 simulator altogether?
The pilot of MH-370 wanted to CRASH THE AIRPLANE (Like 11 September) on Diego Garcia Base ,US ships shot it down.And they keep secret the position of the black box.