Writing Prompt: Scared in the Air!

Creepy, spooky, situations can happen in many different environments.  Check out this warning on an airliner door. 

There are even opportunities for spooky situations at 30,000 feet.  For today's writing exercise, create a short story that involves a terrifying, ghostly, or otherwise spooky situation on an aircraft.

After all, when you are aboard an aircraft high above the countryside, there is no place to run!