for the airport's radio station and curbside announcements, as well as the messages heard onboard AirTrain Newark and in its stations. The airport has the IATA airport code EWR, rather than a designation that begins with the letter 'N' because the designator of "NEW" is already assigned to Lakefront Airport in New Orleans. Also, the Department of the Navy uses three-letter identifiers beginning with N for its purposes. Accidents and incidents On March 17, 1929, a Colonial Western Airlines Ford Tri-Motor suffered a double engine failure during its initial climb after takeoff, failed to gain height, and crashed into a railroad freight car loaded with sand, killing 14 of the 15 people on board. At the time, it was the deadliest aviation accident in American history. On January 14, 1933, Eastern Air Transport, a Curtiss Condor, crashed at Newark; two crewmembers were killed. On May 4, 1947, Union Southern Airlines, a Douglas DC-3 with 12 passengers and crew, crashed on landing at Newark after overrunning the runway and into a ditch where it burned. Two crewmembers were killed. On December 16, 1951, a Miami Airlines C-46 Commando (converted for passenger use) lost a cylinder on takeoff from Runway 28 and crashed in Elizabeth, killing 56. On January 22, 1952, American Airlines Flight 6780, a Convair 240, crashed in Elizabeth on approach to Runway 6, killing 30. On February 11, 1952, National Airlines Flight 101, a Douglas DC-6, crashed in Elizabeth after takeoff from Runway 24, killing 33. On April 18, 1979, a New York Airways commuter helicopter on a routine flight to LaGuardia Airport and John F. Kennedy International Airport plunged into the area between Runways 4L/22R and 4R/22L, killing three passengers and injuring 15. It was later determined the crash was due to a failure in the helicopter's tail rotor. On March 30, 1983, a Learjet 23 operated by Hughes Charter Air, a night check courier flight, crashed on landing at EWR during an unstabilized approach. Both crewmembers were killed. Marijuana was later found in their systems, believed to have impaired judgement. On July 31, 1997, FedEx Flight 14, a McDonnell Douglas MD-11, crashed while landing after a flight from Anchorage International Airport. The Number 3 engine contacted the runway during a rough landing, which caused the aircraft to flip upside down. The aircraft was destroyed by fire. The two crewmembers and three passengers escaped uninjured. On September 11,