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Last updated: 4 December 2021
Estado:Final
Fecha:martes 22 noviembre 1994
Hora:22:03
Tipo:Silhouette image of generic MD82 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-82 (MD-82)
Operador:Trans World Airlines - TWA
Registración: N954U
Numéro de série: 49426/1399
Año de Construcción: 1988
Horas Totales de la Célula:21438
Motores: 2 Pratt & Whitney JT8D-217A
Tripulación:Fatalidades: 0 / Ocupantes: 8
Pasajeros:Fatalidades: 0 / Ocupantes: 132
Total:Fatalidades: 0 / Ocupantes: 140
Víctimas de la colisión:Fatalidades: 2
Daños en la Aeronave: Considerable
Consecuencias: Repaired
Ubicación:Saint Louis-Lambert International Airport, MO (STL) (   Estados Unidos de América)
Fase: Despegue (TOF)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Saint Louis-Lambert International Airport, MO (STL/KSTL), Estados Unidos de América
Aeropuerto de Llegada:Denver-Stapleton International Airport, CO (DEN/KDEN), Estados Unidos de América
Número de Vuelo:TW427
Descripción:
TWA flight 427 collided with a Cessna 441, N441KM, at the intersection of runway 30R and taxiway Romeo, at the Lambert-St. Louis Airport. The MD-82 was taking off for Denver and had accelerated through 80 knots when the collision occurred. The MD-82 sustained substantial damage during the collision. The Cessna 441, operated by Superior Aviation, was destroyed. The pilot and the passenger were killed.

Probable Cause:

PROBABLE CAUSE: "The Cessna 441 pilot’s mistaken belief that his assigned departure runway was runway 30R, which resulted in his undetected entrance onto runway 30R, which was being used by the MD-82 for its departure. Contributing to the accident was the lack of Automatic Terminal Information Service and other air traffic control (ATC) information regarding the occasional use of runway 31 for departure. The installation and utilization of Airport Surface Detection Equipment (ASDE-3) and particularly ASDE-3 enhanced with the Airport Movement Area Safety System (AMASS), could have prevented this accident."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 281 days (9 months)
Accident number: NTSB/AAR-95/05
Download report: Final report

Fuentes:
» NTSB/AAR-95/05


Subsiguiente / acciones de seguridad

NTSB issued 12 Safety Recommendations

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Fotos

photo of DC-9-82-N954U
accident date: 22-11-1994
type: McDonnell Douglas DC-9-82 (MD-82)
registration: N954U
 

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Saint Louis-Lambert International Airport, MO to Denver-Stapleton International Airport, CO as the crow flies is 1245 km (778 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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