United Airlines Flight 521, a Douglas DC-4, was a scheduled flight departing from LaGuardia Airport to Cleveland, Ohio on May 29, 1947. While attempting to take off from runway 18, the aircraft failed to get airborne, overran the end of the runway, ripped through an airport fence onto traffic on the Grand Central Parkway, and slammed into an embankment, ultimately plunging into a pond and exploding. Ten people escaped the flaming wreckage; only six of those survived.

• http://en.wikipedia.org/wiki/United Airlines Flight 521