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Last updated: 22 October 2021
Fecha:jueves 25 enero 2007
Tipo:Silhouette image of generic CRJ2 model; specific model in this crash may look slightly different
Canadair CL-600-2B19 Regional Jet CRJ-200LR
Operated by:Mesa Airlines
On behalf of:America West Express
Registración: N17337
Numéro de série: 7337
Año de Construcción: 1999
Horas Totales de la Célula:19629
Motores: 2 General Electric CF34-3B1
Tripulación:Fatalidades: 0 / Ocupantes: 4
Pasajeros:Fatalidades: 0 / Ocupantes: 50
Total:Fatalidades: 0 / Ocupantes: 54
Daños en la Aeronave: Menor
Consecuencias: Repaired
Ubicación:cerca Woodland Park, CO (   Estados Unidos de América)
Fase: En ruta (ENR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Denver International Airport, CO (DEN/KDEN), Estados Unidos de América
Aeropuerto de Llegada:Phoenix-Sky Harbor International Airport, AZ (PHX/KPHX), Estados Unidos de América
Número de Vuelo:2985
While climbing through 24,000 feet, CRJ200's No. 1 engine experienced a fan disk separation, which resulted in the separation of the inlet, fan rotor assembly, the fan containment case, and portions of the thrust reverser.
The airplane's flight crew declared an emergency and immediately returned and landed uneventfully at the Denver International Airport at 17:30. The aircraft itself sustained minor damage to the fuselage, left engine pylon, and tail section during the engine separation.

Probable Cause:

PROBABLE CAUSE: "A fatigue fracture, which resulted in the separation of the No.1 engine fan disk. Contributing factors in the accident were the operators' maintenance personnel lack of training to be able to detect arc-out damage on the fan disk, and the fan disk manufacturer's inadequate electro-chemical etch match marking process of the fan disk to forward fan shaft that allowed for the initiation of a fatigue point that was undetected at the time of original manufacture."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year
Accident number: DEN07IA055
Download report: Summary report



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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 Denver International Airport, CO to Phoenix-Sky Harbor International Airport, AZ as the crow flies is 962 km (601 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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