On Level 16, I have 99% completion. The only thing left to do is to type in the coordinates and fly..

On Level 16, I have 99% completion. The only thing left to do is to type in the coordinates and fly away. My inventory is empty, the plane has its battery and fuel, the jack is removed, the runway lights are on, I have the coordinates and the paper on the control. But when I try to type the coordinates into the panel, nothing happens. No buttons press and nothing appears on the screen. It is as if I am not ready to finish, but there is nothing left to do, from what I can see. Is this a glitch or am I missing something? Thanks.