American Airlines Flight 6780 was the first fatal crash of a Convair 240 on January 22, 1952 at Elizabeth, New Jersey.
The twin-propeller aircraft was on the routing Buffalo-Rochester-Syracuse-Newark. On final approach to runway 6 at Newark Airport using the instrument landing system, it crashed at 3:45 p.m. into a house at the intersection of Williamson and South Streets, in the city of Elizabeth, New Jersey approximately 3.4 miles (5.5 km) southeast of Newark. The cause of the crash was never determined.
The plane, which had gone 2,100 feet (640 m) off course to the right, narrowly missed hitting the Battin High School for girls, which had dismissed for the day only 45 minutes before.