Imagine flying at about 30,000 feet and realizing there's a hole in the cabin of your jet.
That was the situation for 131 passengers and crew on a Southwest Flight en route from Nashville to Baltimore last night.
An airlines spokeswoman said it made the landing after a football-sized hole in its fuselage caused the cabin to depressurize.
The sudden drop in cabin pressure caused the jet's oxygen masks to deploy.
The airline says no one was hurt on the Boeing 737-300 - which was traveling at about 30,000 feet when the problem occurred.
A replacement plane took the passengers on the Baltimore.