# USAir Flight 5050
**USAir Flight 5050** was a scheduled passenger flight operated by USAir that crashed into the East River on September 20, 1989, while attempting to take off from [[entities/laguardia-airport|LaGuardia Airport]] (KLGA) in New York City. The incident is widely cited in aviation safety literature as a critical case study in [[concepts/crew-resource-management-crm]], communication breakdowns, and the consequences of uncorrected Wake Turbulence.
## Accident Overview
- **Date:** September 20, 1989
- **Aircraft:** [[entities/boeing-737-400|Boeing 737-400]] (N453US)
- **Route:** New York LaGuardia (KLGA) to Charlotte Douglas International Airport (CLT) with a stop at Orlando International Airport (MCO)
- **Location:** East River, New York City
- **Casualties:** 27 fatalities (21 passengers, 6 crew); 57 survivors
- **Primary Cause:** Controlled Flight Into Terrain (CFIT) due to departure behind a departing 747 in Wake Turbulence combined with severe crew [[concepts/coordination|coordination]] failures.
## Key Factors and Analysis
- **Wake Turbulence Encounter:** The flight departed runway 31 shortly after a Pan Am Boeing 747 had departed from the adjacent runway 4R. The 737 entered the 747's wake vortex, causing an immediate loss of control.
- **CRM Failures:** Post-accident analysis highlighted significant deficiencies in Cockpit Resource Management. The First Officer observed unusual aircraft behavior but failed to assertively challenge the Captain, who maintained a high workload and ignored subtle cues.
- **Regulatory Impact:** The crash led to revisions in FAA regulations regarding minimum separation distances between heavy and lighter aircraft during takeoff.
- **Analysis Source:** [[lab-notes/2026-05-31-USAir-Flight-5050-LaGuardia-Incident-Exposes-Critical-Cr|USAir Flight 5050: LaGuardia Incident Exposes Critical Crew and CRM Failures]] provides a detailed breakdown of the video analysis by [[entities/mentour-pilot|Mentour Pilot]], emphasizing the lack of situational awareness and the "stacked deck" of errors.
## See Also
- Aviation Safety
- Wake Turbulence
- Boeing 737
- LaGuardia Airport