Incident
Last updated: 20 April 2014
Estado:Final
Fecha:martes 7 enero 1992
Hora:13:32
Tipo:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-232
Operador:Delta Air Lines
Registración: N322DL
Numéro de série: 23094/1026
Año de Construcción: 1984-05-09 (7 years 8 months)
Horas Totales de la Célula:20468
Motores: 2 Pratt & Whitney JT8D-15
Tripulación:Fatalidades: 0 / Ocupantes: 5
Pasajeros:Fatalidades: 0 / Ocupantes: 44
Total:Fatalidades: 0 / Ocupantes: 49
Daños en la Aeronave: Menor
Consecuencias: Repaired
Ubicación:Dallas-Fort Worth, TX (   Estados Unidos de América)
Fase: Despegue (TOF)
Naturaleza:Pasajeros Programado
Aeropuerto de Salida:Dallas/Fort Worth International Airport, TX (DFW/KDFW), Estados Unidos de América
Aeropuerto de Llegada:Houston-Intercontinental Airport, TX (IAH/KIAH), Estados Unidos de América
Descripción:
The right engine separated from the wing as the airplane was climbing through 200 feet after takeoff. Following the engine separation, the crew continued the climb and were vectored for an uneventful landing without further incident. Engine separation was the result of the failure of the aft cone bolt and the engine secondary support assembly. The aft cone bolt failed as result of a preexisting fatigue crack, while the engine secondary support assembly failed as result of the dynamic loads that exceeded the designed capacity of the mounting bolts. The two forward cone bolts failed in overload as the engine swung forward during the separation sequence. Metallurgical testing revealed that the fatigue of the aft cone bolt was a result of lubricant inadvertently introduced into the conical surface of the cone bolt.

PROBABLE CAUSE: "The failure of the aft cone bolt as result of preexisting fatigue cracking due to improper maintenance, and the failure of the secondary support structure as a result of loads that exceeded the capacity of the attaching hardware and the crushable honeycomb core."

Fuentes:
» NTSB


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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 Dallas/Fort Worth International Airport, TX to Houston-Intercontinental Airport, TX as the crow flies is 359 km (225 miles).

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