A mother of two was killed when a Southwest Airlines jet from New York City made an emergency landing at Philadelphia International Airport. Jennifer Riordan, 43, was sitting near a window that was smashed when an engine cover ripped off. Riordan was nearly sucked out of the plane. Fellow passengers worked to pull her back inside and started CPR. NTSB investigators confirm an engine failed in mid-air and pieces of debris went flying off with a portion landing some 60 miles away. Southwest has about 700 planes, all of them 737s, including more than 500 737-700s like the one involved in Tuesday's emergency landing.