2 fatalities

USAir Flight 5050 Accident (N416US)

New York-LaGuardia, United States of AmericaTakeoff (climb)

On September 20, 1989, a Boeing 737-400 (registration N416US) operated by USAir - US Airways was involved in an aviation accident near New York-LaGuardia, United States of America during takeoff. 2 people were killed. Investigators recorded the probable cause as: The captain's failure to exercise his command authority in a timely manner to reject the take-off or take sufficient control to continue the take-off, which was initiated with a mistrimmed rudder. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 14 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-11Data APIEditorial standards
Boeing 737-400
Photo: San Diego Air & Space Museum Archives / Public domain, via Wikimedia Commons

A USAir Boeing 737-401, N416US, crashed into the East River after a rejected takeoff from LaGuardia Airport. The accident was caused by a mistrimmed rudder and the captain's failure to reject the takeoff in time.

Flight Operations and Delays USAir Flight 1846, a Boeing 737-401 with registration N416US, was originally scheduled to depart Baltimore/Washington (BWI) at 15:10. Inbound air traffic to New York-LaGuardia (LGA) delayed the takeoff until 19:35. The aircraft held on the taxiway for 1.5 hours and returned to the terminal area for fuel before departing uneventfully. It arrived at LGA Gate 15 at 20:40, where weather and air traffic had caused significant delays and cancellations in the terminal area. The USAir dispatcher initially canceled the Norfolk leg of Flight 1846 and planned to send the aircraft to Charlotte (CLT) without passengers. Minutes later, the dispatcher changed the plan, instructing the crew to carry passengers to Charlotte as USAir Flight 5050. The captain expressed concern that further delays would cause the crew to exceed duty time limitations. During boarding, the captain visited USAir's ground movement control tower to ask about decision-making processes. He returned to the cockpit as the last passengers boarded and the entry door closed. After the jetway was retracted, a passenger service representative asked the captain to reopen the door to board more passengers. The captain refused, and Flight 5050 departed Gate 15 at 22:52.

Probable cause

The captain's failure to exercise his command authority in a timely manner to reject the take-off or take sufficient control to continue the take-off, which was initiated with a mistrimmed rudder. Also causal was the captain's failure to detect the mistrimmed rudder before the take-off was attempted.