The Federal Aviation Administration is investigating after Delta Flight 1076 reported that a firework struck its airliner while descending toward Chicago Midway International Airport at about 200 to 250 feet.Pilots reported a loud bang and an impact; air traffic control had warned of numerous fireworks over neighborhoods that often send shells as high as 1,300 feet, and Delta Air Lines immediately removed the aircraft from service for inspection.The flight landed safely, no injuries are reported,
Chicago police and city officials were notified, and authorities are seeking evidence to determine whether the device exploded nearby or struck the fuselage.