24 Taken to Hospital After Plane Leaks Hydraulic Fluid on Taxiway

They complained of difficulty breathing, itchy skin and burning eyes.

After the pilots called in an alert, the passengers -- many with burning eyes, itchy skin and difficulty breathing -- evacuated via emergency slides, according to the airport and the FAA.

The plane, an Airbus A320, was readying to take off for a trip to Philadelphia International Airport. Passengers that weren't taken to the hospital were bussed back to the terminal and rebooked.

In a statement, American apologized to its customers for the "maintenance issue."