[Uncle Chip]

My guess as to the island on his computeror is New Amsterdam:

http://en.wikipedia.org/wiki/%C3%8Ele_Amsterdam

It appears to be the destination of the 450knot flight path that the NTSB initially charted then abandoned:

https://www.facebook.com/178566888854999/photos/pcb.740971779281171/740971732614509/?type=1&theater

[Jack Hydrazine]

But could he have made it to that island with the fuel he had on board?

[Uncle Chip]

Someone early on must have been given a heads up:

http://www.duncansteel.com/wp-content/uploads/2014/04/V_2D_2.png

This charted flight path hits New Amsterdam right on —

[cynwoody]

My guess as to the island on his computeror is New Amsterdam:

I don't see any airport there. Just a tiny village at the northeast corner.

It doesn't look like the topography would be very favorable to constructing an airport.