Southwest Airlines Boeing 737-300 jet makes an emergency landing after a football-sized gash appears in the cabin on July 13, 2009. Flight 2294 was at 34,000 feet, en route from Nashville, Tennessee, to Baltimore, Maryland, when the incident happened. The plane landed in Charleston at 5:10 p.m. after the crew reported the sudden drop in cabin pressure, which caused the jet's oxygen masks to deploy.

There were 126 passengers and the five crew members on board on flight 2294, no injuries among
were reported. "There is no responsible way to speculate as to a cause at this point," Southwest said in a statement Monday night.

Both the Federal Aviation Administration and the National Transportation Safety Board are investigating the incident.